I've also never made a travel claim but I get some insurance each trip. Definitely do research at the link Catherine gave you. You'll also have to decide what you want to cover.
It sounds like you want to cover some medical evacuation issues (which is what I in particular want) so that is the term you want to look for. Do you also want to cover potential medical expenses? Depends on what country you are going to in my opinion. Some countries you may be covered by their health system, some not. Still whatever happens it might not be as expensive as being uncovered here in the US.
Some people want coverage for expenses they might incur if they get Covid on their trips and need to stay longer. This was not important to me...I figured I had enough room on my credit cards to charge an extra 10-15 days if I HAD to so I've not paid for insurance to cover that.
You'll probably be offered insurance from your airline when you purchase your ticket so that might work for you. You also may have some kind of coverage on a credit card so run that down as well.
Take notes because, as they say....it's complicated, lol!!