I don't know if you're talking about yanderes or if you want more harlequins/jesters/clowns, but here are some recommendations.
Yandere Harlequins/Jesters/Clowns: Kingdom of Marionettes, Don't Eat the Cashier, Monster x Mediator, Trapped with Jester.
Yandere: 14 days with you, Klein, Duality.
These are the most popular, but you can search for more games using the tags on this platform.