Add a race similar to Loxodon. Maybe a woolly mammoth version, from up north? Like this: https://i.pinimg.com/originals/b9/84/16/b98416bc684d6f144c113edc3cc56b25.jpg
Possibly introducing it as a newer race that came out of the far north due to the world cooling down? Something like that would be cool.
Here's a playtest version of the Loxodon race for example.
https://media.wizards.com/2018/dnd/downloads/UA_RavnicaRaces.pdf