Honestly im really just seeing what would be a short, fun, and easy game to run. maybe this thread can help some other people
You need to be more specific, otherwise we won't be able to make informed recommendations. Do you like glitch heavy games? Do you like platformers, RPGs, combat games? What consoles do you have? Do you have money? Without answers to questions like these, people will just recommend whatever game they like to run, and the odds of finding a good game in that mess will be next to none.
To be honest, if you are looking for a free game that is short and fun with good competition, definitely There Is No Game.
https://www.speedrun.com/flip_knight_by_preatomic_prince - check this out if you want a new game. It is a web game and is a bit challenging