Again, please note, this is not the complete list of communities we have on Hive. We have a lot more, but it took me a couple of weeks to put this together, with all my daily activities going on.

You should use PeakD search on communities, use the keywords you think describe your topic and see how many communities are there for the topic and choose the right one.

It's hard to suggest a community if I can't read the post entirely and I'm not an expert either, but here's the rules for Self Improvement community -> https://peakd.com/c/hive-166408/about.