I have a shopify store for dropshipping tech gadgets, i dropship from cj dropshipping but open to using other platforms also, i need help on the setup of the store itself, advice on the domain setup, marketing guidance on tik tok, snapchat, insta etc.

I have a shopify store for dropshipping tech gadgets, i dropship from cj dropshipping but open to using other platforms also, i need help on the design setup of the store itself, advice on the domain setup (domain does not seem to be working properly), marketing guidance on tik tok, snapchat, insta etc. Basically i am new to dropshipping and need some setup advice so i can get started. Willing to pay someone to get this setup perfect for me, then i can take over.