Visible is the closest you will get. It offers unlimited everything including hotspot for $40/month with no added fees or taxes. You can reduce that to $25/month by joining a "Party Pay" plan. Data speed is not capped except for hotspot speed which is capped at 5 Mbs. They do prioritize which means they can reduce speed during heavy traffic on the tower you are connected to. So far this month I've used 205GB of data and have 12 days till the end my cycle.
I've had the plan for 13 months and the service has been great.
https://www.visible.com/
