In my mind there are 2 real options for Sweden that will allow it to stay relevant in the long run, those options are the Swedish Gripen E and the Finnish F/A-18c’s. The Gripen E seems to be the better addition, albeit there are doubts that it would be balanced due to its armament, however it might not have to be given its meteors and such until they would become balanced as a stopgap. the other option is the Hornet, however it would be more of a stopgap measure for Sweden as war thunder moves into its longer range BVR meta