Here are my recommandations on what is better on PC because of the advantage of mouse and keyboard vs controller by genre:
Strategy: the first thing I wanted to do when I bought my PC is to play Age of Empire 2 and Starcraft 2 and they still are the top games of the genre. It’s night and day compared to their console games like Halo Wars. I recommend also the Civilisation series.
Simulators: Cities Skylines and Microsoft flight simulator are fun games and nothing looks like it on console.
MOBA: AFAIK, MOBAs like DOTA 2 and League of Legends only exist on PC because it’s unplayable on controller. I don’t like these kinds of games, but it’s still something that you won’t find on console.
FPS: A mouse let you have better control on your aim, but it’s less relevant in games with crossplay multiplayer where the aim assist on controller is strong like in Apex Legends and Halo Infinite. Recently, a lot of people enjoy Battlebit.