There is no solution that is great right now but it is supposedly coming this year.
SpaceX is launching a matrix of low earth orbit high speed internet satellites that will ultimately provide exactly what you need. Maybe by year end. It can provide home internet or take it with you in the RV internet - ANYWHERE. Even in the middle of nowhere. Price is supposed to be similar to to typical high speed internet. Supposed to do streaming as well.
It's called Starlink. I plan to subscribe when available. Pair it with a VOIP cell phone capability or similar and you're in high cotton.
They've already launched over a thousand (60 at a time)and plan for 12,000 of them initially. Next expected launches are Wednesday & Thursday of this week from the Kennedy Space launch complex. So they are serious about this.
https://www.starlink.com/