Yes. Transporter, Caravelle, Shuttle and California single front seats are all interchangeable and can come in various specs such as height adjustment, lumbar, trim, armrests, factory swivel etc but they will all fit on the standard 4 bolt metal seat base.
The heights will all be the same, the only minor exception is the factory swivel (not to be confused with a bolt on aftermarket swivel plates, factory swivel mechanism is built into the seat) these seats do not have height adjustment but they have been designed for the standard base so only if you are extra tall or short would this potentially be an issue. Have a search on this forum and there are plenty of discussion threads on factory swivels.
The only ones im not 100% sure on is the electric seats but I would have thought these would be compatible across the range too, just obviously need all the electric wiring to make them work.
Do you have any particular seats in mind?
Personally, I have changed my front seats, swapped out 2017 T6 single seats for 2022 T6.1 ones with the factory swivels. Its a 5 min job to swap them over.