I have a link to my Shop in my signature (not one of the pictures, it's at the top of my sig). That link should take you to the shop forum after you leave mine. Hope it helps!
As for trading pure starters? You can give it a shot, but most of the shops tend to specialize in harder-to-get pokeys like events or shinies. You might have more luck in the generation trade threads going by individual pokemon.
3DS code: 3823-9867-2750 (FRIENDS LIST CURRENTLY FULL! Please use alternate 3DS code!)
Alternate 3DS code (I use both!): 3196-4267-4698