Conrad Waters in his "Navies of the 21st Century" (a good read) suggests that whilst "real" carriers will probably be restricted to the USA, China & India in the foreseeable future there is a whole range of vessels avalable that can operate various combinations of fixed wing, STOBAR, STOVL & helicopters ranging from the QE's through the Kuznetsov to the Japanese "helicopter carrying destroyers" and the various assualt ships such as Juan Carlos and even the Karel Doorman.
You get what you pay for but you could see quite a few operating small numbers of F-35's - at least for a short while - which maybe all you need. Horses for courses