ASP.NET MVC - Change input to dropdown and popular with table values SQL Server

I have a partial view (in this case, one of those Razor Pages) of type "Create" created from a table in SQL Server (which is stored as entity of a template in my application).

@model Candidaturas.Models.DadosPessoai


@using (Html.BeginForm("AddOrEdit", "DadosPessoais", FormMethod.Post)) 
{
    @Html.AntiForgeryToken()

    <div class="form-horizontal">

        @Html.ValidationSummary(true, "", new { @class = "text-danger" })
        <div class="form-group">
            @Html.LabelFor(model => model.NomeColoquial, htmlAttributes: new { @class = "control-label col-md-2" })
            <div class="col-md-10">
                @Html.EditorFor(model => model.NomeColoquial, new { htmlAttributes = new { @class = "form-control" } })
                @Html.ValidationMessageFor(model => model.NomeColoquial, "", new { @class = "text-danger" })
            </div>
        </div>

        <div class="form-group">
            @Html.LabelFor(model => model.Nomes, htmlAttributes: new { @class = "control-label col-md-2" })
            <div class="col-md-10">
                @Html.EditorFor(model => model.Nomes, new { htmlAttributes = new { @class = "form-control" } })
                @Html.ValidationMessageFor(model => model.Nomes, "", new { @class = "text-danger" })
            </div>
        </div>

        <div class="form-group">
            @Html.LabelFor(model => model.Apelidos, htmlAttributes: new { @class = "control-label col-md-2" })
            <div class="col-md-10">
                @Html.EditorFor(model => model.Apelidos, new { htmlAttributes = new { @class = "form-control" } })
                @Html.ValidationMessageFor(model => model.Apelidos, "", new { @class = "text-danger" })
            </div>
        </div>

        <div class="form-group">
            @Html.LabelFor(model => model.NomePai, htmlAttributes: new { @class = "control-label col-md-2" })
            <div class="col-md-10">
                @Html.EditorFor(model => model.NomePai, new { htmlAttributes = new { @class = "form-control" } })
                @Html.ValidationMessageFor(model => model.NomePai, "", new { @class = "text-danger" })
            </div>
        </div>

        <div class="form-group">
            @Html.LabelFor(model => model.NomeMae, htmlAttributes: new { @class = "control-label col-md-2" })
            <div class="col-md-10">
                @Html.EditorFor(model => model.NomeMae, new { htmlAttributes = new { @class = "form-control" } })
                @Html.ValidationMessageFor(model => model.NomeMae, "", new { @class = "text-danger" })
            </div>
        </div>

        <div class="form-group">
            @Html.LabelFor(model => model.NDI, htmlAttributes: new { @class = "control-label col-md-2" })
            <div class="col-md-10">
                @Html.EditorFor(model => model.NDI, new { htmlAttributes = new { @class = "form-control" } })
                @Html.ValidationMessageFor(model => model.NDI, "", new { @class = "text-danger" })
            </div>
        </div>

        <div class="form-group">
            @Html.LabelFor(model => model.TipoDocID, htmlAttributes: new { @class = "control-label col-md-2" })
            <div class="col-md-10">
                @Html.EditorFor(model => model.TipoDocID, new { htmlAttributes = new { @class = "form-control" } })
                @Html.ValidationMessageFor(model => model.TipoDocID, "", new { @class = "text-danger" })
            </div>
        </div>

        <div class="form-group">
            @Html.LabelFor(model => model.Genero, htmlAttributes: new { @class = "control-label col-md-2" })
            <div class="col-md-10">
                @Html.EditorFor(model => model.Genero, new { htmlAttributes = new { @class = "form-control" } })
                @Html.ValidationMessageFor(model => model.Genero, "", new { @class = "text-danger" })
            </div>
        </div>

        <div class="form-group">
            @Html.LabelFor(model => model.EstadoCivil, htmlAttributes: new { @class = "control-label col-md-2" })
            <div class="col-md-10">
                @Html.EditorFor(model => model.EstadoCivil, new { htmlAttributes = new { @class = "form-control" } })
                @Html.ValidationMessageFor(model => model.EstadoCivil, "", new { @class = "text-danger" })
            </div>
        </div>

        <div class="form-group">
            @Html.LabelFor(model => model.Nacionalidade, htmlAttributes: new { @class = "control-label col-md-2" })
            <div class="col-md-10">
                @Html.EditorFor(model => model.Nacionalidade, new { htmlAttributes = new { @class = "form-control" } })
                @Html.ValidationMessageFor(model => model.Nacionalidade, "", new { @class = "text-danger" })
            </div>
        </div>

        <div class="form-group">
            @Html.LabelFor(model => model.DistritoNatural, htmlAttributes: new { @class = "control-label col-md-2" })
            <div class="col-md-10">
                @Html.EditorFor(model => model.DistritoNatural, new { htmlAttributes = new { @class = "form-control" } })
                @Html.ValidationMessageFor(model => model.DistritoNatural, "", new { @class = "text-danger" })
            </div>
        </div>

        <div class="form-group">
            @Html.LabelFor(model => model.Concelho, htmlAttributes: new { @class = "control-label col-md-2" })
            <div class="col-md-10">
                @Html.EditorFor(model => model.Concelho, new { htmlAttributes = new { @class = "form-control" } })
                @Html.ValidationMessageFor(model => model.Concelho, "", new { @class = "text-danger" })
            </div>
        </div>

        <div class="form-group">
            @Html.LabelFor(model => model.Freguesia, htmlAttributes: new { @class = "control-label col-md-2" })
            <div class="col-md-10">
                @Html.EditorFor(model => model.Freguesia, new { htmlAttributes = new { @class = "form-control" } })
                @Html.ValidationMessageFor(model => model.Freguesia, "", new { @class = "text-danger" })
            </div>
        </div>

        <div class="form-group">
            @Html.LabelFor(model => model.Morada, htmlAttributes: new { @class = "control-label col-md-2" })
            <div class="col-md-10">
                @Html.EditorFor(model => model.Morada, new { htmlAttributes = new { @class = "form-control" } })
                @Html.ValidationMessageFor(model => model.Morada, "", new { @class = "text-danger" })
            </div>
        </div>

        <div class="form-group">
            @Html.LabelFor(model => model.Localidade, htmlAttributes: new { @class = "control-label col-md-2" })
            <div class="col-md-10">
                @Html.EditorFor(model => model.Localidade, new { htmlAttributes = new { @class = "form-control" } })
                @Html.ValidationMessageFor(model => model.Localidade, "", new { @class = "text-danger" })
            </div>
        </div>

        <div class="form-group">
            <div class="col-md-offset-2 col-md-10">
                <input type="submit" value="Salvar" class="btn btn-default" />
            </div>
        </div>
    </div>
}

<script src="~/Scripts/jquery-1.10.2.min.js"></script>
<script src="~/Scripts/jquery.validate.min.js"></script>
<script src="~/Scripts/jquery.validate.unobtrusive.min.js"></script>

However, some of the fields appear as text inputs when this is not what I want. For example, I have a "Genero" input that appears as normal text input that I would like to make in a dropdown list and popular with values from an SQL table. As I do not have much experience in ASP.NET (let alone dealing with Razor Pages), what is the best approach to follow?