Kraniac,
When you say short-term rentals and guests, are you discussing an AirBNB type of situation? If that is the case, then I'd be leery of providing anything but the most rudimentary of TV and streaming services. The last thing I'd want is guests to have access to my accounts with streaming services.
Give guests basic local TV service and a means to access the Internet. Once they have that, they can stream content on their own devices via their own personal accounts with services. If you want to offer more, you need to find a streaming media box and services both of which you can lock down easily. You don't want the guests messing with the settings and such.
For streaming, choose a streaming media device that can be locked down easily (think parental controls on steroids), has a simple, easy to navigate interface and start with Pluto TV for media. It's free, doesn't require an account and has lots of content. Choose other apps that provide free content.
Other people, provide minimal services. For yourself, it's a different matter entirely. All bets are off when it comes to yourself. Sling TV is a good comprehensive option. This site has a table that covers a tremendous number of services and types of content:
https://www.smartmove.us/streaming/services/comparison
Robert