I will miss /reddevils cause it's fun to see fans of your club interact on a daily basis. Same goes probably for all the wholesome subs, all the cute dog-content cause it was a good feeling to have positive outlets to come to and just have a few "aww"-moments.

R/earthporn, r/lab rats, r/Superbowl, r/pitbulls

2westernasia4u

r/InternetIsBeautiful

If you are actively looking for a subreddit, try use browse.feddit.de, then you can add it in the search bar

/r/stupidfood

A huge chunk of anime subreddits, some nsfw subs, mealprepsunday and 1500isplenty, suggestmeabook, antimeme, copypasta, coolguides, collapse support, and my city's subreddit (I get to know more about my city, since my residence is far away from the main center of activity). And those small communities for singleplayer rpg mobile games I found interesting. I know they're never going back, most people won't even bother with mobile as a platform for games anyway...

r/letsnotmeet was always a fun, morbid read. I'll miss it.

r/unrealengine had some good people on there

more of the monster catcher / game subs ( r/yugioh , r/bakugan , ones like that ) . ik that they'll probably come over to here eventually , but it won't feel the same as how it did on reddit .

r/nosleep. It is on lemmy too but to read older stories i have to go back to reddit

Given how much effort 3rd party app developers poured into nsfw capabilities I expected to see much more in this regard.

The niche little places like r/gpd and r/cyberdeck. They're not big communities, but they were good ones.

MechanicalKeyboards ErgoMechKeyboards ELI5

All the Manga related ones.