I have some issue with my code when getting data dynamically using ajax script laravel

I'm working on a project i need a load more button i tried the following code but i think something is wrong.

there is a load more button on click see all some more results should display. on click see all it calls the controller method but i think i am not able to post data to controller method what wil i get from ajax response.

here following is my code which i tried.

View

<div class="form-group border-bottom pb-3">
                <label for="usr" class="f-14 bold black">Manufacturers</label>

                <div class="pl-md-4 pl-2">
                    
                    <label class=" my-checkbox gry2">Show All Manufacturers
                        <input type="checkbox">
                        <span class="checkmark"></span>
                    </label>
                    @if(count($leedManufacturers) > 0 )
                    @foreach($leedManufacturers as $leedsManufacturer)
                    

                    <label class=" my-checkbox gry2" id="manufacturer">
                            <input type="checkbox">
                            <span class="checkmark"></span>
                        </label>
                        
                    

                    "> --}}
                    @endforeach
                    @endif

                    <a class="load-more" id="load" href="#" class="f-14 bold">See All</a>

                    <input type="hidden" id="row" value="0">
                    <input type="hidden" id="all" value="">


                </div>
            </div>

Script

 <script type="text/javascript">
        $(document).ready(function(){

        // Load more data
        $('.load-more').click(function(){
            var row = Number($('#row').val());
            var allcount = Number($('#all').val());
            var rowperpage = 3;
            row = row + rowperpage;

            if(row <= allcount){
                $("#row").val(row);

                $.ajax({
                    url: "",
                    type: 'post',
                    data: {row:row},

                    success: function(data){

                        alert(data);

                    }


                });

            }else{

                console.log('if is not working');



            }

        });

        });
</script>

Controller:

public function colabrativetwo(Request $request, $slug = 0, $division_id = 0, $section_id = 0, $manufacturer_id = 0, $list=""){

$row = $request->row;
      $manufacturersFeatured = Product::select('manufacturers.id AS id', 'manufacturers.name AS name', DB::raw('COUNT(DISTINCT products.id) as products_count'))
                ->whereIn('products.status', ['active'])
                ->where(function ($query) {
                    $query->where('products.low_emitting_material_prerequisite_file', '!=', '');
                })
                ->where('users.user_type', 'manufacturer_paid')
                ->leftJoin('products_selected_leeds', 'products.id', '=', 'products_selected_leeds.product_id')
                ->leftJoin('sections', 'products.section_id', '=', 'sections.id')
                ->leftJoin('divisions', 'products.division_id', '=', 'divisions.id')
                ->join('manufacturers', 'products.manufacturer_id', '=', 'manufacturers.id')
                ->join('users', 'manufacturers.user_id', '=', 'users.id')
                ->orderBy('name', 'asc')
                ->groupBy('manufacturers.id')
                ->limit($row)
                ->get();


 return view('guest::new_design_frontend.product-library', $manufacturersFeatured);}

via Chebli Mohamed