In the northern hemisphere I have seen the Aurora borealis from Alaska and from Iceland (visited twice).
My 2019 visit to Iceland coincided with heightened solar activity up to minor storm levels dues to a coronal hole on the Sun. I spent 8 nights chasing the aurora from various areas in Iceland including north Iceland. The sights were amazing! Particularly memorable was the aurora over Nes farm where I stayed in east Iceland. I took advantage of their private thermal pool after only 3 hours sleep!
During that night I witnessed the auroral corona directly overhead. I can remember that suddenly a bright dagger appeared to come from overhead, it made me feel like crouching down so intense was the display! Sometimes I was lucky to capture the corona like this butterfly one photo below).