So...
Rillaboom line - gorillas, near Oranguru and humanlikes
Cinderace line - rabbits, next to lopunny and diggersby
Inteleon line - chameleons, next to kecleon
Greedent line - squirrels, next to emolga and pachirisu
Corviknight line - corvids, next to murkrow
Orbeetle line - ladybugs, next to ledian
Thievul line - red foxes, next to fennekin and Vulpix lines
Drednaw line - snapping turtles, next to Turtwig line
Yamper line - corgis, with the rest of the domesticated dogs
Eldegoss line - cotton, next to Whimsicott
Rolycoly line - earthbound, next to Geodude and roggenrola lines
Sizzlipede line - centipedes, next to Scolipede line
Milcery line - I guess next to miltank? Or since sugar comes from plants, near there?
Applin line - it’s the Wyrm not the Apple, so I guess in the Dragon section? Not sure on this one
Arrokuda line - barracuda, with the rest of the bony fish
Hatterene line - humanoids, I guess near Gardevoir line
Grimmsnarl line - also humanoids, probably closer to like electabuzz? There isn’t really a section for mythological humanoids yet
Sandsconda line- snake section, next to Arbok I guess
Polteageist line- ghosts inhabiting a tea pot, so I guess in that section
Indeedee line- kinda impish? So maybe near Grimmsnarl. But they also look like Audino so idk
Morpeko- hamsters, so i guess near dedenne
Falinks- literally no clue
Snom line- moths, near Volcarona I guess
Grapploct line- octopi, near octillery
Duraludon- dragons? Or is it earthbound?
Eiscue- penguins with empoleon
Stonjourner- earthbound next to Geodude I guess
Dreepy line- dinosaurs, not sure the specifics
Fossils- all man-made