First off, congratulations on considering using Shopify to launch your dropship business.I would be happy to point you in the right direction.
I recommend checking out our Shopify design articles to get inspiration and ideas on how to build a great looking webpage with Shopify. Homepage Design 101 is a recommended resource to check out!
As far as dropshipping goes, we have an A-Z guide here on getting started with dropshipping, which covers all the important business facets of launching and running a successful dropshipping business.
If there is anything else I can help you with, please let me know.