Idk, you could go with the gripen, But tbh even Sweden thinks it's a joke. Ask anyone about it and you'll hear a lot of jokes about how they are great at attacking the ground (crashing). The same types of "why the F35 and not gripen" points came up when Norway got them. The answer is a combination of NATO + the fact that, especially compared to the gripen, the F35 is the better choice. Multipurpose, easily deployed in multiple arms of military, can hold payloads for any mission type, etc. Sure it would be quite poetic to have Denmark pay Sweden for swedish planes but I don't see it happening soon.