Our first line of protection when traveling out of the US is
MASA. I paid for this years ago when they were affiliated with some group in the RV world. As a charter member that is permanent. Second line is
FMCA Assist.
I have had the MASA since before FMCA had a comparable plan. They have changed carriers and dropped the benefit briefly during my membership and I would not care to be caught needing the coverage while they make yet another change.
There are other providers in the market as well. Good Sam has a program as well. Read carefully for the benefits and exclusions. MASA is Worldwide so if we go trekking in the outback we are covered for air ambulance etc.
Just one person's experience - have never needed any of these and would just as soon consider the money spent on sleeping well.