lemmygrad has a couple ask communities, c/asklemmygrad and c/askcomrades is a good place to ask open questions about this instance/communism in general. If you have more specific questions, there are region specific communities for china/north korea, etc. and some places to learn more about the history of the USSR and GDR and whatnot. Also you can peruse c/informedtankie and if you are really open to learning more about our perspective, the prolewiki is a great place to learn a lot very quickly: https://en.prolewiki.org/wiki/ProleWiki:Main_page (And if you think that a wiki called 'prolewiki' would be biased against capitalism, you can google how the CIA has been moderating wikipedia since it's inception, a story told by a co-founder of wikipedia: https://www.azerbaycan24.com/en/cia-moderating-wikipedia-former-editor/%7Cazerbaycan24, lots of media outlets have this story as well, so no bias here, just facts).

Last but not least, the c/comradeship (also called freechat) is where a lot of people spend their time, and you can ask questions there as well.

Hope this helps! I hope you learn we aren't scary people, we have some memes/dunking communities, but when people ask real honest questions, we tend to respond in kind with real honest answers.