all i need are free games on the pc and some cheap (like under or at $20) games on the wii/wii u

Welcome to the site! Good luck on your runs.

It's not free on PC, but Eldritch is the game that I am speedrunning right now. Its like a horror/roguelike/stealth game and it is very fun to speedrun. I am also new to speedrunning so good luck to you!

I recommend a game called Quiplash since it's only 10$ on Steam and it's very fun and easy to speedrun https://www.speedrun.com/quiplash

Webgame for PC

https://www.speedrun.com/rodha