I also like /r/motorcycles, even though I still haven't bought a motorcycle. Maybe this year will be the year I actually buy one...
https://old.reddit.com/r/redneckengineering
https://old.reddit.com/r/worldnews
https://old.reddit.com/r/combatfootage (NSFW/NSFL)
https://old.reddit.com/r/explainlikeimfive/
https://old.reddit.com/r/AskReddit/top/ (cuts down on signal-to-noise)
https://old.reddit.com/r/localllama
https://old.reddit.com/r/datahoarder
https://old.reddit.com/r/preppersales
https://old.reddit.com/r/generator
https://old.reddit.com/r/electricians
https://old.reddit.com/r/plumbing
https://old.reddit.com/r/woodworking
https://old.reddit.com/r/construction/
https://old.reddit.com/r/homeimprovement/
https://old.reddit.com/r/AncientCivilizations/
https://old.reddit.com/r/todayilearned/top/ (cuts down on signal-to-noise)
https://old.reddit.com/r/appliancerepair/top/ (cuts down on signal-to-noise)
https://old.reddit.com/r/castles/top/
https://old.reddit.com/r/AnimalsBeingBros/ (feelgoods)
https://old.reddit.com/r/specialaccess (old life)