How to do filter for products (laravel)

You can create a local scope. Something like:

public function scopeFilter($q)
{
    if (request('price_from')) {
        $q->where('price', '>', request('price_from'));
    }
    if (request('color')) {
        $q->where('color', '>', request('color'));
    }

    return $q;
}

Then use it:

Product::filter()->paginate(20);