Most of these are open source and free, or have a free version.

Tools

2D
Krita drawing
GIMP free photoshop
Inkscape vector graphics
3D
Blender
Unreal Engine
Video
DaVinci Resolve editor
OBS capture/broadcast software
Music
Audacity audio editor
Koala sampler (mobile)
Cubasis mobile DAW

Resources

Color palette generator
"Cursed" text generator
Texturelabs free textures
SmartNormap 2.0 normals generator
ActionVFX stock VFX footage
Physically Based - The PBR values database
Alpha textures
3Dassets.one - The asset search engine