Total Wireless runs off verizon towers. But it's a fixed pre-paid $25 per line + discount if you autodraft, so e.g. 2 lines runs around $56 w/ taxes, 3 is $80 something, 4 is like $90 something. You can BYOD with any CDMA/Verizon compatible phone and a $6 sim card available at walmart. Plenty of data, something like 15 or 20gb per line (shared).

I've been through Sprint, Verizon, Tmobile over various years, but I've stuck with this for probably the last 4+ years with no complaint. Verizon phones, with verizon service, and essentially unlimited data, but not the $200/month phone bill.