For me, it’s Gintama. It’s iconic, easily identifiable, and makes sense on a musical level. On the last point, I’m not knowledgeable on the theory, but the Gintama soundtrack, in general, is enjoyable to listen too. If I have to pick one favorite song there, it’s Katsura’s theme.
Kensuke Ushio never misses. In addition to what you’ve already mentioned, OSTs from Agents of the Four Seasons, Devilman Crybaby, Journal with Witch, Dandadan were all great too. He’s so talented. His involvement with any anime project alone is enough for me to check out it out.
As for the others, that I haven’t seen mentioned yet, I really like Jujutsu Kaisen S2 OST. It has an interesting mix of electric, rock, and classical themes. Stuff like No Hesitation is fantastic