laravel_data_base_YS/resources/views/comments/insert.blade.php

<div>
  <label>Пользователь:</label>
  <select name="user" >
    @foreach($users as $user)
      <option value="{{$user->id}}">{{$user->name}}</option>
    @endforeach
  </select>
</div> <br>
<div>
  <label>Текст:</label><br>
  <textarea cols="40" rows="3" name="text">{{old('text')}}</textarea>
  @error('text') <div style="color: red">{{$message}}</div> @enderror
</div> <br> <br>