How to show value in a dropdown option field in laravel?

I have 3 table hosts visitors and visitor_types. I wand to show host name and visitor type in a drop down option button. But I am little bit confused about the controller and route code. I write the code code that is given below but it's show -Undefined variable: host (View: C:\laragon\www\ves\resources\views\admin\visitor.blade.php)

Controller Code: hostController.php
public function optionValue(){

    $host = host::all();
    return view('admin\visitor', compact('host'));
}




View Code: visitor.blade.php
<div class="form-group">
<label class="control-label col-md-3">Visitor Type
    <span class="required" aria-required="true"> * </span>
</label>
<div class="col-md-6">
    <div class="input-icon right">
        <i class="fa"></i>
        <select class="form-control input-medium" name="visitorType">
            @foreach($host as $host)
            <option value="$visitor->name"></option>

        </select>
        @endforeach
    </div>
</div>

Route code: web.php
Route::get('/vsistor','HostController@optionValue')->name('optionValue');

In visitor table the host_id and vType_id is foreign key from host and visitor_types table. So how can I display Name that come from another table in a drop down button?

via Chebli Mohamed