I think being a Pixel user going to any of those phones would be a downgrade. There are too many compromises. The cameras for one are poor quality, especially the One Plus Nord. If you use pixels you will be very disappointed with them. I would get a 4a if possible. See if TMobile is offering that.
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B. Diddy got a free Samsung A32 and didn't like the experience. Actually got himself a Pixel 3a XL instead. So again if you are used to Pixels that is unlikely to whet your taste buds.
The REVVLs sound like a lost cause. Also these phones are unlikely to get updates and the 4a will get Android 12, 13 and possibly 14 plus security for 2 more years. No guarantees on the others. All in all the 4a really is the way to go. Or the 4a 5G because that is a great phone and one I am using myself to write this post.