I am also currently learning how to create mods, so I might make a mod or two if I can get the motivation to do so.
Some other mods/resourcepacks that I like to play with:
Sound filters (reverberation and muffling)
Dynamic Surroundings (adds lots of sound ambience and visual effects, successor of Matmos and Presence footsteps)
Snowsong sound pack (resource pack that changes most sounds in the game)
List of websites that illegally repost mods: https://github.com/VictiniX888/Illegal-Mod-Sites/blob/master/SITES.md
Minecraft, music, programming (to some extent)