Well I was tempted to try the new OP 7Pro, but I wasn't sure about it's support on Verizon (specifically CDMA 3g etc, as I live in a rural area and sometimes I don't have good LTE coverage). FWIW the rep I spoke with on the OP website chat states that it was supported, and the bands are listed in the specs. (They're also listed in the specs for the 6t though, and that phone does not support CDMA on Vzn). Long story short, I was having more issues with the Nexus 6 and didn't want to wait for shipment, so I went to a brick and mortar.
I ended up going with the Pixel 3a, and so far I'm very happy with it. Unlocking the bootloader is an option in the settings once you enable developer options, although for now I'm going to stick with the vanilla OS.