[mdaniel]

https://codereview.stackexchange.com/ may be worth a shot; I know it's a common meme that the stackexchange sites are a cesspool but my experience has been "garbage in, garbage out"

Also, I would guess the "review it savagely" and "absolutely destroying you" part is likely projection, or perhaps not setting expectations of what outcome you want from any such review. If it's "what's wrong with this code?" one will get a monster range of responses. If you have specific concerns, then stating them as specific success criteria will likely improve your experience

Without any question you will want to consider the audience of peers when asking for reviews. Stopping by r/Programmer and soliciting input is a good way to get the lolz; posting in a more targeted forum for your language or framework or both, or even asking your followers on any social media presence may get less firehose from the Internet