Members of the OECD tend to be those with the highest GDP. Here you'll find data sheets covering numerous facets of each of these countries. If your country is not a member, you can do a search in the search box and it will bring you to a list of publications that might include your country.
Search for your country; once you are at the country's data page, click "Visit GHO for more country information" to get updated statistics on the health care system. The landing page also has COVID reports, news reports on other diseases, and funding information.