Big fan of Tinkatink for Eden, I feel like that would be their perfect match. They'd probably like fairy types in general really so any of those. And I am so biased to Pawmi, I love it so much so that too, haha.
I would love to get a Blood Moon Ursaluna on here. Between it's awesome signature move Blood Moon and being a special attacking varient it would have a ton of potential. It looking epic as well is icing on the cake. It would also be quite useful at doing neutral damage to ghost types as it's ability Mind's Eye allows it to hit them with normal and fighting type moves.