NOTE: I'M AVOIDING ALOLAN SPOILERS.  

I'll happily take gen7 suggestions, but I'm trying not to see any more new mons til I play the game!
Please respect that and don't post gen7 art here as your suggestion (just type their name instead), thanks! 

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ALREADY PLANNING TO MAKE: 
(LIKELY INCLUDES A SHINY VER) 
in alphabetical order

ALL:

- STARTERS (and all their forms, eventually...) 
- EEVEELUTIONS 
- LEGENDARIES
- FOSSILS 
- GHOSTS, DRAGONS, & ELECTRIC TYPES 
- ELECTRIC RODENTS

- Chinchou 
- Cosmog 
- Ditto/chu 
- Dragonite 
- Drillbur 
- Dugtrio (+Alolan) 
- Excadrill 
- Exeggutor (Alolan) 
- Furret 
- Flygon 
- Gallade 
- Gardevoir 
- Gyarados 
- Honedge 
- Houndoom 
- Lapras 
- Litten 
- Lucario 
- Magikarp 
- Magnemite/ton  
- Meowth (+Alolan)
- Mimikyuu 
- Ninetales (+Alolan) 
- Psyduck 
- Ralts 
- Rhyhorn/don  
- Riolu 
- Rockruff 
- Roserade 
- Rotom/dex 
- Shinx 
- Sneasel 
- Staraptor 
- Stunfisk 
- Togepi 
- Tropius 
- Vulpix (+Alolan) 
- Weavile 
- Zangoose 
- Zigzagoon

Just a quick list off the top of my head! I'll add more below this comment as I think of them!