Bring a bar with you. Depends on if you're able to accommodate that.
These kind of bars could travel pretty easily and wouldn't mess up any doorway that you're staying at, most likely.
I use one of these, combined with rings. Can do a huge amount of exercises with that, and rings wouldn't be hard to travel with, either.
This one is super solid. Not that convenient to install/remove though:
https://www.amazon.com/FLYBIRD-Doorway-Screws-Trainer-Workout/dp/B08LR73GZ8