Some of my favorite communities that are fun and active are:

• !bicycles@lemmy.ca
• !cyberpunk@lemmy.villa-straylight.social
• !foss@beehaw.org
• !games@sh.itjust.works
• !linux_gaming@lemmy.ml
• !steamdeck@sopuli.xyz
• !technology@lemmy.world

r/RedditAlternatives is another one that might be worth mentioning instances on.

Not enough people know about that very useful website. Although I think that Lemmy should have this kind of complete search as a native feature without needing to go to a third party website.

Yes, posting and interacting is essential to help our communities grow. I used to only lurk but have been trying to post more on here.

A big sore spot is that youtube videos and text posts can’t open in-line on the front page.

I see a book icon under posts that does this when browsing through my instance’s website. Most of the mobile apps are early in development and may not have this feature yet though.