Blender Market - Hard Surface Industrial Kitbash Vol. 1, this is an industrial Kitbash set, focusing on real engineering parts. It contains 77 basemeshes, all meshes are quad based modeled, no n-gons.
Doodle 99 - abstract art kitbash set - Blender Market
Till Freitag - Development of my Personal Kitbash Library [Part 1]