App/Http/Middleware/RedirectAuthenticated.phpを編集します。
namespace App\Http\Middleware;
use Closure;
use Illuminate\Support\Facades\Auth;
class RedirectIfAuthenticated
{
    /**
     * Handle an incoming request.
     *
     * @param  \Illuminate\Http\Request  $request
     * @param  \Closure  $next
     * @param  string|null  $guard
     * @return mixed
     */
    public function handle($request, Closure $next, $guard = null)
    {
        if (Auth::guard($guard)->check()) {
            // return redirect('/home');
            return redirect('/top');
        }
        return $next($request);
    }
}
TopController.phpをつくります。
namespace App\Http\Controllers;
use Illuminate\Http\Request;
class TopController extends Controller
{
    /**
     * Create a new controller instance.
     *
     * @return void
     */
    public function __construct()
    {
        $this->middleware('auth');
    }
    /**
     * Show the application dashboard.
     *
     * @return \Illuminate\Contracts\Support\Renderable
     */
    public function index()
    {
        return view('top');
    }
}
上手くいくようになりました。

 
					 
