Total Wireless (Verizon MVNO) have updated their family plans with more data and now offer unlimited 2G. Extra data is $10 for 5GB (unlimited rollover).
2 lines with 30GB shared for $60 ($57 w/ autopay)
3 lines with 60GB shared for $85 ($80.70 w/ autopay)
4 lines with 100GB shared for $100 ($95 w/ autopay)
They also have the Moto G7 Power ($179) and Moto G7 Play ($140) available.
Source: Total Wireless