Hello,
where can I ask for a review of my game, when I want to improve? Are there discord servers available? Somehwere where one could talk and ask questions? 
Best regards,
Nope
Well, this is a good place to ask anyone for a review.
Just link the game, tell us what you are struggling with and I am sure there will be enough people who will give you feedback.
Welcome to OGS, hope you enjoy your stay here.
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Please head over to Teaching > Reviews requests, and you should be happy 
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I enjoy Kifu – GoKibitz just upload your game and people will take a look at it, but if you want to join a call and ask more specific stuff you might want to try BeginnerGo Discord Community : r/baduk
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