I want to display all the data coming from the ‘senders_name” column in my ‘staff’ table, so i can display it in my select input box dropdown

I want to display all the data coming from the ‘senders_name” column in my ‘staff’ table, so i can display it in my select input box dropdown.

In the code below I have establish a one to many relationship between staff and Post, and I am trying to loop between all senders_name data
in my select drop down option, I have attached the staff model in my PostConroller and i have pass the variable to
//this is my post table

//this is my post model

<?php

namespace AppModels;

use IlluminateDatabaseEloquentFactoriesHasFactory;
use IlluminateDatabaseEloquentModel;

class Post extends Model
{
    
    protected $table = 'posts';
    

    public function staff(){
    
        return $this->belongsTo('AppModelsStaff', 'staff_id');
    }

}

//this is my staff model

<?php

namespace AppModels;

use IlluminateDatabaseEloquentFactoriesHasFactory;
use IlluminateDatabaseEloquentModel;

class Staff extends Model
{
   
    protected $table = 'staff';
    

    public function posts(){
    
        return $this->hasMany('AppModelsPost');
    }

}

//this is my PostController

 <?php
    
    namespace AppHttpControllers;
    
    use IlluminateHttpRequest;
    use AppModelsStaff;
    use AppModelsPost;

    
/**
 * Show the form for creating a new resource.
 *
 * @return IlluminateHttpResponse
 */ 
   public function create()
{   $staffs= Staff::all();
    return view("posts.create")->with('posts', $staffs);
}
    

    

//this is my create page  that shows the error(undefine variable staff)
@extends('layouts.admin')
@section('content')

<div class="block bg-warning ">
  <h1 class="lead p-3 container">Expense Requests Form</h1></div>
  @include('inc.messages')
<div class="container">

  <link rel="stylesheet" href="{{ asset('css/style.css') }}">
    
    <form action='{{url('posts')}}' method='POST'>
        @csrf
    
    
    <div> <label for="exampleSelectRounded0" style="margin-top:10px;">DRIVERS DETAILS</label><h6>Drivers Name</h6>
      @foreach ($staffs as $staff )
    <select class="custom-select rounded-0" id="exampleSelectRounded0" name="staff_id">
      
      <option  value="{{ $staff->id }}" {{ old('') == "" ? 'selected' : '' }}>{{ $staff->senders_name }}</option>
      @endforeach
</div>
</div>
<div>
<@endsection>