I am on mint mobile (an MVNO of t-mobile) for 5gb a month for $15. I think you have to do 6 months at a time to get the $15 a month but that isn't a big deal. My service is good but does suffers when I go places that are really crowded but that doesn't bother me.

I'm on the smallest Verizon prepaid plan. Just checked, and I'm misreading the specifics, as it's actually $25/mo for 15GB. Sorry!

Starts at $35/mo, and includes a $10 discount for autopay. I was expecting an addition $10 rebate, but apparently I'd need to add an extra line for that.