OTP looking for advice from other OTPs

I'll start off by saying I'm a former Rengar OTP, stopped maining him after rework but im not going to get into why as that's not what I want this post to be about. When I mained Rengar I never felt bored of playing him, even when I would get destroyed in lane by like a darius or something I still found a way to be impactful and I never had any thoughts of switching mains. Now after his rework I'd been trying to find another champ to one-trick and was considering yasuo, but decided to go with Master Yi instead. It didn't even go that bad I went from gold 4 to plat 5 maining him but all throughout the journey I never felt completely satisfied and sometimes questioned picking a different champion. I don't really know where to go from here, should I just accept that I probably won't find a (current) champion that I enjoy as much as I did Rengar?

Sorry for rambling a bit I probably could have summarized all this better.