VLC also supports ReplayGain information, and you can set default ReplayGain value on Android, and likely on the desktop one as well.

However to create ReplayGain you need Musicbrainz Picard or the ReplayGain Scanner function of FB2K.

LLVM for kids

I’d like to have a logo edit / sbubby sub.

Also, some niche ones that aren’t there yet (AFAIK):

buildapc : PC building help

SavageGarden / carnivorousplants: subs aimed towards tending bug-eating plants

hardwaregore / firmwaregore / softwaregore / technope : subs based around faulty hardware and firmware, sometimes destroyed hardware, or badly designed software

cablefail : pictures of bad cable management and the chaos of cabling in general

itsaunixsystem : sub based on overly fake or wrong tech in the media

PBSOD : faulty kiosks and such displaying error messages in the open

spicypillows / spicybricks : sub based on the pictures of swollen batteries of any kind, with the “bricks” being UPS batteries

dankpods / battrees : Australian youtuber who yells at several portable music gadgets and headphones, the battrees one being pictures of off-brand batteries, mostly PKCell batteries, but can also be several others as well.

techsupportmacgyver : instances of crazy fixes that ended up working

termux : sub for the Termux project

ITRage (likely a replacement for iiiiiiitttttttttttt) : information technology-related rage posts

headphones : not sure if there’s a sub there for headphones and IEM related stuff so I guess there could be one.

justrolledintotheshop : automotive repair shop employee’s findings when working on vehicles

Another, much more niche music, streaming and TV-related:

kpop : for Korean music news and updates, discussion (with objective viewpoint)

kdrama : news and updates about Korean drama series, reviews, discussion

kdramarecommends : recommendations for Korean drama series

trigger (or maybe studiotrigger) : discussion and updates on anime made by Studio Trigger

webtoons : webtoon series discussion

animemusic : sharing music featured in anime series

This all I could get from the top of my head currently.