check out the m43 glass thread I made, I'm hoping to get more samples soon. As far as wide angles, everyone either uses the olympus 12mm, the tokina 11-16 (nikon mount), and the 7-14 is very good, but slightly less common. Also, the rokinon fisheye is great, I just got one and I love it. As far as 35mm, the samyang/rokinon have great reviews, and there are many other options as well, it all depends on the look you are trying to achieve. The samyang/rokinon or maybe a nikon would probably match a modern uwa the best, but there are other cool options like the mir 1b
heres the m43 thread:
https://www.newschoolers.com/ns/forums/readthread/thread_id/724471/