I was also going to suggest crypto-bridge.org but then I didn't know how confusing (as a DEX) it can be for a beginner. I've never had any problems with it. It has always worked great for me, especially for trading small, lesser known coins. To be fair, some people report various issues with CryptoBridge. On the other hand, I did have some problems trading on Cryptopia in the past. Like inactive coin blockchains, withdrawal issues, etc. After a period of waiting, everything was eventually resolved. No exchange is perfect. That's why I thought trading on binance would be the best choice for a newbie.