As far as non-Waverly tuners go, I am personally partial to Gotoh SGi510 tuners. But they’re probably too heavy at 28ish grams each.
One of my ukes has Gotoh UPTs on it, and they’re *very* nice (and quite light). I like Gotoh’s friction tuners as well (and have used them in the past on an older Koaloha soprano), but the UPTs are a notable improvement.
I put Gotoh UPT’s on my Koaloha concert and consider it a HUGE upgrade. I didn’t love the friction tuners. Nobody honestly prefers them IMO. Cue the haters…