Amateratsu is traditionnaly the spouse of her very own brother Tsukuyomi. You can check Wikipedia.
In case of Inari he was married with Ukemochi and after Tsukuyomi slain her he married Mitama (Uga-no-Mitama).
Note also that Inari is vastly renown to have both a male and female form and those spouses are much more the "traditionally in some myths" spouses than the definitives wifes. Some other traditions mention that Ukemochi and Mitama are a form of Inari.