I feel once X-23 captured/convinced them to stay in her display gallery she'd pick the following:
- Earth-616 Rogue. She's most familiar with her, so a logical choice.
- Earth-11052 Rogue aka X-Men Evolution Rogue - Because Laura would totally dig Rogue's gothic look.
- Earth-10005 Rogue aka Fox Movies Rogue - Given X-23's friendship with Jubilee (a Vampire), I'd assume the two of them have probably watched True Blood together and thus Laura would totally want Anna Paquin in the gallery.
- Earth-92131 Rogue aka 90's Animated Rogue - Pretty iconic version of rogue and would likely draw a lot of nostalgia visitors who would otherwise not be interested in a Rogue's Gallery.
- Earth-1025 Rogue aka Rogue P.I - X-23 would probably dig this Rogue's choice of fashion.
- Earth-11326 Rogue aka Legacy from Age of X. Legacy is a pretty different spin of Rogue, would be a great addition to any collection!
Probably more can be added, but I'll leave that up to you all