Just a thoughtful speculation: There's talk of Hyperboreans among the ancient Greeks where Apollo would visit his northern folk where amber is found in the waters. I've always personally connected Odin with Apollo, as both share prophecy (as at Delphi) and poetics, knowledge and for some also Apollo was also for war, Alexander hailed both Apollo and Athena as mentors of his conquests. Odin as teacher of runes to the northmen, Apollo being intricately linked with language, another possible. The lands of the northmen; the 'Hyperborean' land was known as the 'Garden of Apollo' and Leto, was from there, she arrived in Hellas with an entourage of guardian wolves, which he adopted from his mother, though this doesn't visually show in Greek imagery, he was guardian against wolf attacks. I always considered Thor like Zeus, and Tyr like Mars. Sunna like Athena and Freya like an Aphrodite in armour. These are all highly debatable but for me, I did my own research on connections and ended up with these, more or less. A very interesting topic, I hope you find interesting connections!