Finding Telegram Groups

I was wondering if anyone has any tips for finding telegram groups as I have been struggling to find any good ones. Should I just go around dming accounts similar in size to mine or is there some master list buried deep in these forums? I have looked on google for some but the same three keep popping up.

Yes, you can google it once you search exactly for good niche for you. There are lots of groups and channels which can be useful for you.