Most of the services now make it fairly easy to cancel. You used to have to call and talk to a person that would refer you to the "customer retention department" which would try to keep you from cancelling. Now, you can usually just fill out a form online.
So .. the reason I said all that is that you don't have to decide which is best for you. You can try them one at a time. And you can switch fairly easily to another whenever you want to help avoid multiple charges. Also, most offer a free trial period.
Having said all of that, I am lazy and have a subscription to several services. The most expensive one is YouTube Live. It is basically like a cable package with local channels and a lot of "cable" channels plus a lot of on-demand selections. One nice feature is that it has almost unlimited "DVR" storage. You can set it to save anything you are interested in and it'll keep the programs for up to nine months. It basically turns everything you DVR from the local and cable channels into on-demand stuff.
If you are interested in network programs but don't need local channels, you can subscribe to Hulu (mostly ABC and Fox), Peacock (NBC), and Paramount+ (CBS). All three also have movies and other things. If you choose the "with commercials" options, it isn't very expensive to get all three. I don't recommend the non-commercial options because you will be annoyed by how many commercials they still show you even though you paid extra to avoid them!
If you want live sports, I recommend YouTube TV.
If you have kids or just like Marvel, Star Wars, and other Disney properties, of course, you should consider Disney+. It's also a pretty good deal if you aren't a Disney fan because it has a lot of content and because you can bundle it with Hulu and ESPN+. My biggest nitpick is I don't like the interface it uses on our Roku TVs. The program icons and titles are too small especially on the smaller TV in our RV.
HBO Max is a good choice for more adult (not that kind of adult, though!) programming. Lots of good movies and series.