Coincidentally Romania is retiring it's own 5th Generation Fighter, the MiG-21 Lancer.
Much like with everyone still operating the MiG-21, even the moderized ones, they have a very considerable accident rate and in Romanian service, have been grounded fairly often due to various safety and operational issues. Romanian received its first MiG-21's back in 1965. The LanceR's currently in service and now just retired were upgraded by Romanian and Israeli firms starting in the late 90's.
The MiG-21 LanceR was the longest serving fighter jet in Romanian Air Force. After 61 years of career, the iconic MiG-21 LanceR, the longest-lived fighter aircraft in the history of the Romanian Air Force, successfully completed its final flight mission at Boboc, in eastern Romania. The last...
theaviationist.com
Romania plans on acquiring over thirty Norwegian F-16 Fighters to supplement the fourteen they already have in service.
India, IIRC, has over a hundred MiG-21bis in active service still and which have been planned on being phased out for the better part of a decade. But they're still in active service. Besides them, almost every other country still operating them only operates a small number of them with the exception of Best Korea which has even more MiG-21's or its Chinese derivative, the J-7, in service then even India and China itself which has a few hundred still in operation (and Pakistan lesser numbers of the J-7 as well).