You know, it's kinda funny - I am a citizen of both Georgia and the first country on the list of approved countries there, and was thinking about spending a month or two over there since my job went remote only. Yet, due to my ties to Georgia, I can't visit for a few more years, or I'd have to piss away a year in military service.
Oh well, not the best of times to be travelling anyway, and doesn't seem like it's getting better for... a while anyway.
I do not necessarily personally recommend it but I know Safetywing is a popular choice for nomads and officially covers Covid. Otherwise you can look at either your countries of citizenship or residency that have international health insurance. IMO it makes sense to get an insurance from the country you would like to get repatriate to if you get in a very bad condition.
Oh well, not the best of times to be travelling anyway, and doesn't seem like it's getting better for... a while anyway.