My vote would be for the smaller Botia loaches - I’m not super well versed in the species but I think yoyo is an option.
Assassin snails could also work.
Loaches will certainly control pest snails, and assassin snails will too Manual extraction, together with reducing feeding will help lots as well.
My personal experience with yoyo loaches, clown loaches, and Modesta loaches is that they can coexist with-, and do not directly harass too much, but generally outcompete Cories in tanks.