One place that can be useful is https://codereview.stackexchange.com/ https://codereview.stackexchange.com/ . Of course, I think that the idea is not to post 50

One place that can be useful is https://codereview.stackexchange.com/ https://codereview.stackexchange.com/ . Of course, I think that the idea is not to post 500 lines and say "review pls", but I have seen some very thorough reviews there. It's likely you can distill a couple parts of your app down and get a decent review.