The best solution I could find is T-mobile's unlimited plan with International plus (gives you unlimited tethering) otherwise you're limited by most carriers only 10-15GB of data. They still "deprioritize" you after 50GB but I see most carriers do this as well at around 25GB.
Check out my @Speedtest result! How fast is your internet?
Speedtest by Ookla - The Global Broadband Speed Test
I'm at 60+ gigs right now for this cycle that doesn't reset until the 23rd. It's fast enough to do stock trading and basic shit but that's about it. I also have their cell booster that will amplify the signal as long as you can get at least one bar.