kicad-parts
There are 2 repositories under kicad-parts topic.
CGrassin/kicad_parts
KiCad symbols and footprints library for various parts and modules
k1zmt/PhilsLibraries
KiCAD symbols, footprints and packages for ham-radio. SWR bridge, T50 toroids, BN-baluns, Si5351, OLED etc.