Check out https://codereview.stackexchange.com/ https://codereview.stackexchange.com/ or the code review subreddits. If you follow their posting guidelines you'

Check out https://codereview.stackexchange.com/ https://codereview.stackexchange.com/ or the code review subreddits. If you follow their posting guidelines you're likely to get feedback on how to improve your (working) code. I recommend you start with the free options above, but if you need more in-depth feedback we offer paid code review at https://www.pullrequest.com https://www.pullrequest.com. It's code review as a service for every popular language that can help you improve your code quality.