Glad to hear you're escaping the land of proprietary, over-priced, BS :-)
I'm going for one of the Librem phones myself. https://puri.sm/products/librem-5/
And they have a [apparently] privatized SIM-card plan now as well. $100 a month for unlimited talk/text/data, coverage-by-contract like Google's thing, but they don't pass on any info they don't have to. (haven't done due dilligence into this yet - to be clear) https://puri.sm/products/librem-awesim/