Sorting userlist in Laravel

I am very beginner in Laravel. I have Laravel 5.8 in my project.

I have this code:

Schema::create('users', function (Blueprint $table) {
            $table->bigIncrements('id');
            $table->char('enable', 1)->default(0);
            $table->string('name', 120)->nullable();
            $table->string('surname', 120)->nullable();
            $table->string('email', 120)->unique();
            $table->timestamp('email_verified_at')->nullable();
            $table->string('password');
            ........
            $table->rememberToken();
            $table->timestamps();
            $table->engine = "InnoDB";
            $table->charset = 'utf8mb4';
            $table->collation = 'utf8mb4_unicode_ci';
        });


Schema::create('comments', function (Blueprint $table) {
            $table->bigIncrements('id');
            $table->bigInteger('user_id')->unsigned();
            $table->foreign('user_id')->references('id')->on('users')->onDelete('cascade');
            $table->string('commentable_type');
            $table->bigInteger('commentable_id');
            $table->char('enable', 1)->default(0);
            $table->char('to_stats', 1)->default(0);
            $table->tinyInteger('rating')->default(0); // 1-5
            $table->text('content');
            $table->dateTime('date_time');
            $table->ipAddress('ip');
            $table->engine = "InnoDB";
            $table->charset = 'utf8mb4';
            $table->collation = 'utf8mb4_unicode_ci';

How can I show users list:

1. sort after number of comments held

2. sort after number of votes which user has (comments-> rating)?

via Chebli Mohamed