I’ve never had problems getting film. I usually get fuji here, or for Kodak, I often use AG Photography. The pricing is pretty reasonable either way.
As regards the choice of films, it makes sense that there are fewer. Better for them to slim down production than go out of business. Look at what happened to AGFA. To produce a master roll of film is a massive undertaking, and if they can’t sell it all, a big financial blow.
I thought it was funny to see all the bleating about the demise of Kodachrome. I bet most of them only shot with it because it was being discontinued. If they’d have been using it as they claimed, Kodak would have kept it going
I think that between them, the film companies cover all bases, though at the moment, it seems that Kodak is showing more commitment, producing newer and better film. We have the movie industry to thank, as they are the biggest users of film stock.