I watched a small handful; here are my favorites:

• Bureaucrat to Villainess OP - The ED is nice too (I love the bit at the end with his family), but to me the OP is just full of charm.
• Hundred Girlfriends ED - That was just incredibly cute.
• Apothecary Diaries OP - I assume that much as the previous OP, this’ll hold a lot more significance once I’ve seen more than one episode of the season. In the meantime it’s a pleasant song with pleasant visuals.
• Apothecary Diaries ED - This one mostly stuck out because it’s so different from what I feel we usually get. I don’t even like it more than average, but I really appreciate it when they try something unusual. I feel like this happens a lot more with EDs than OPs.
• Medalist ED - It’s really cute, but not as cute as the Hundred Girlfriends ED if I’m being honest.