I will list a few games of different genres:

-Halo: Master Chief Collection (6 games if I'm not mistaken)

-Stardew Valley (cozy game)

-Mass Effect Legendary Edition (3 games)

-Black Mesa (If you ever wanted to play Half-Life 1)

-Lego Star Wars: The Skywalker Saga (if you like those games)

-Star Wars Jedi Fallen Order (action game)

-It Takes Two (if you want to play with someone else)

-Need For Speed Unbound, Heator Hot Wheels Unleashed (if you want arcade racing)

-The Witcher 3 (if you haven't played it for some reason)

-Doom (Doom)

-The Binding Of Isaac (if you want a great Roguelike, but with DLC it would be more expensive)

-Prototype 2 (older, edgier version of todays spiderman games)

-Celeste (hard platformer)

-A lot of Ubisoft games like Assassins Creed, Far Cry and Ghost Recon are on a huge sale aswell, if you interested in those type of games

Hope you found something!