Hosts such as Leaseweb, nForce or Worldstream have 100TB+ plans you can purchase. If you're willing to spend quite a bit, they also offer truly unmetered plans.

Hosts such as Leaseweb, nForce or Worldstream have 100TB+ plans you can purchase. If you're willing to spend quite a bit, they also offer truly unmetered plans. I've personally used all three of them, but never used more than 100TB a month.