Ukraine MOD came out with a wish list of FJ's.
To play around with the idea the Gripen would be an interesting option for Ukraine: did well in latest tenders being the runner up (Finland, Canada), easy to maintain (advertised to require just two conscripts to turn around on a highway base) and already NATO compatible. Just a small hickup is the very low number made, who'd send their AC's on a short notice? Czech needs their to cover Slovakia due to Slovakia sending their mig29's to Ukraine. Hungary has only 12+2. South Africa has 17. So unless Czech gets their F35's very fast and Sweden sends their fleet it's a no go.