General Education
STEM Education
Nostr Education
Bitcoin Education
 @TheSchoolofBitcoin ^

Minecraft
Roblox

Anime
Manga

Permaculture
Horticulture
Nature

Freedom
OSS
FOSS
SelfHosting
Networking
Programming

Security
Cyber-Security
Privacy 
 @Ava for these 3 at least ^

More to come I'm sure.