This was asked today in another community, but still happy to share my favorites in hopes that others will enjoy:

!askkbin@kbin.social

!asklemmy@lemmy.world

!bonvoyage@lemmy.world

!dadjokes@lemmy.world

!general@lemmy.world

!natural_process_art@mander.xyz

!reclaimedbynature@lemmy.world

!science@kbin.social

All versions of TodayILearned (@kbin.social,@lemmy.world,@lemmy.ca,@lemmy.ml)

!youShouldKnow@lemmy.world

Any my personal (certainly non-biased) favorite

!futurama@lemmy.world