Imo get an Xbox series S and put doom on it - Xbox game pass has most Doom titles included and he can play Forza Horizon 5 which is a nice blend of realism and arcade with adjustability such as difficulty, Traction control ABS etc plus tons of customisation on the car itself.

You can also purchase some of the splinter cell titles for cheap as well including blacklist which is the most recent.

This method is a lot cheaper than a PS5 and games

PS5

Pick up;

DOOM PS4

Gran Turismo