Maybe instead of all the aliens are from either the milky way, Andromeda or outside the local group, we should use some of the other know galaxies. Here's a list of them:

Antennae Galaxies

Backward Galaxy

Black Eye Galaxy

Bode's Galaxy

Butterfly Galaxies

Cartwheel Galaxy

Cigar Galaxy

Circinus Galaxy

Coma Pinwheel Galaxy

Comet Galaxy

Cosmos Redshift 7

Eye of Sauron

Fireworks Galaxy

Hockey Stick Galaxies

Hoag's Object

Large Magellanic Cloud

Lindsay-Shapley Ring

Little Sombrero Galaxy

Medusa Merger

Sculptor Dwarf Galaxy

Mice Galaxies

Small Magellanic Cloud

Mayall's Object

Needle Galaxy

Wolf–Lundmark–Melotte

Pinwheel Galaxy

Sculptor Galaxy

Sombrero Galaxy

Southern Pinwheel Galaxy

Sunflower Galaxy

Tadpole Galaxy

Triangulum Galaxy

Whirlpool Galaxy

Malin 1