Interesting idea. I would do a couple of simple searches on the major search engines for an accurate, laser-focused description of your product. If you go too broad you will most likely end up with a large, diverse distributor or retailer that may not afford much margin for you. Probably the best way to prospect. I would also look at other products that would/could accompany yours and search for online reatilers selling those products. It's difficult to be more specific without knowing your product.
As far as a template for drop shipping; templates generally are too generic to apply directly to any individual business. That being said, drop shipping agreements can be somewhat difficult due to the potential scope. Does it include terms of sale? Does it include minimums or volume incentives? how do you compensate for fluctuating fuels surcharges? How are you paid? When?
There is a Logistics Co. out there that specializes in helping start ups, small businesses, and entrepreneurs with their supply chain, international business, compliance etc. The name of the Co. is Blue Valor Logistics and their web site is www.bluevalorlogistics.com. The unique thing about this co. is that they will set up or tweak your supply chain, establish processes, make it scalable, and train your employees or yourself to manage it long term. You have no ongoing commitment or obligation. They are truly committed to helping start-ups and entrepreneurs succeed.
They helped with my business, which is still in its infancy. I am able to focus on my core competency and growth instead of wresting with my supply chain.
I hope this helps.