These are the top 100 sports movies of all time, according to the average rankings of 120+ writers on The Athletic's staff. The Athletic is a national sports journalism company consisting of some of the best sports journalists in the U.S. It is a pay service, but here is the link to their official list if you want to check it out. Each of the movies has a short entry by one of the writers, plus the article lays out their methodology and requirements for whether or not a movie qualifies (in short: no TV movies and only documentaries with significant reach).
At the moment, I have seen 49/100. Also, kudos to the Rocky/Creed franchise, which boasts 6 movies on this list.