A lot of base home landline plans won't support that level of usage.
None of the consumer plans are going to support this. Even if you find one that technically does, expect within a month or two, they will ask you not to be their customer anymore.
Also, what is your peak demand? 50GB/day is 0.62MB/s if you are pulling at a steady rate 24/7 but if you are expecting 50GB/day in 8hrs, that's expecting 2MB/s for 8 hrs...once you get away from the big cities, that isn't always possible even if the plan were to allow it.
I'm going to call this not possible at this time. When 5G is nation wide, maybe though it will be expensive.