Shooting Chompy-Dreamer is how I learned him (summoning Dreamer adds an extra layer of difficulty if you're not used to it (depends on how new to the game you are)). Though, if you want a super-flexible non-summoning Dreamer, taking Growing Up, Sleep Cycles, and Tantrum gives you lots of options and plenty of opportunities to get Chompy on the table. His obvious synergies are with Nightmares - and you can always summon Alps & Daydreams.
A good crew would likely have Lelitu (her Lure is great in GG '18), a Daydream or two for the pushes and to sack if Dreamer gets in trouble, and a Stitched Together is a good base.
Coppelius is relatively good at running schemes (though he's a bit expensive for it) - and is pretty good at hunting down opposing scheme runners (due to his speed and Horror Duel generation).
Honestly, with the Hooded Rider now at 10 stones - I have a tough time keeping him out of any crew. Bring Serena Bowman and you can make him a Nightmare (or any other minion/enforce you want to throw Warped Reality on) - which gives you other options as well.