I so lot of people like Katya,Porrun and Judith.So the harem.
1.Lagertha(Confirmed)
2.Katya(Confirmed)
3.Judith(Confirmed)
4.Porrun(Unconfirmed)
No more
I have some doubts actually normally I would just go with Lagertha X Thor pairing but I have seen some people hate it so when I checked all wives Odin had.
Frigg, mother of Baldur and Hodr
Frigg was probably the official wife of Odin. She was the only one who was recognized as the chief goddess in Asgard.
Jord, mother of Thor
Little do we need to explain Thor Norse God of Thunder and Storm in Norse mythology. He was the son of Odin and Jord a giantess.
Rinda, mother of Vali
I don't know if she was a giantess, a goddess, or a princess but she gave birth to Vali, one of Odin's sons. Vali was the one who sought revenge for Baldur's death.
Gunnlod, mother of Bragi
Bragi was the god of music and poem in Norse mythology. He was the son of Odin and Gunnlod the giantess.
Grid, mother of Vidar
Another wife of Odin was Grid. She was only mentioned to be the mother of Vidar. In Norse mythology, Vidar was a God of Silence.
And many more I saw .