you can get real close look at the MIG-21 and Saab Dragen at the Tikkakoski museum.
The Saab looks like something out of Battlestar Galactica. No separate tail, just huge deltawings.
When I was serving in Army, I saw these landing on roads in the middle of the night. And when you stand on side of the road the effect of the dragen just touching the ground then activating after burner and getting back up. it’s quite loud! And you stand like 10m to the side of it.