For me it's Mashle, the Apothecary Diaries and Frieren as top Peaks.
Ragna Crimson is the hypest battle anime airing right now. The fights are way more peak than anything Solo Leveling will have until the Ants arc.
Classroom of the Elite Season 3 is my guilty pleasure. I just love the bullshit in this one.
I am watching a bunch but the only one I consider good is Kusuriya no Hitorigoto. I'm also watching Frieren but this second part has been quite bad and I barely care about anything, so it doesn't count