Look for older PC's to fix I'm a student. IBM PC's 1980's early 1990's

I'm learning to fix computers going to butte college Do you have any older computer you do not want anymore? Looking for commodore 64, and commodore Amiga Also IBM 5150's 5160's 5170's IBM model 90's 9577/8590/9590/8595/9595 IBM PCjr keyboard's and mice to go with them, Model M keyboard, Model F's floppy drives 5.
25' 1.
44 old cd roms.
old hard drives 1980's to early 1990's 30mb- 500mb to 2Gb's