Two different international coalitions are now trying to design 6th-generation fighters that will be available for export, but the earliest they could possibly be available is 2035. So, for at least another decade the F-35 will be the only survivable 5th-generation fighter available for purchase in US-aligned countries.

There are still a few other 4th-generation fighters in production, some with modernized systems, but at this point they're only suitable for a limited set of defensive or low-intensity missions. Russia and China supposedly also have operational 5th-generation fighters now but it's unclear whether those actually work, and they can't build enough to even supply their own forces let alone exports.