Start by researching the business. How long have they been in business? What types of products do they typically carry? Are your competitors already in that store? Once you've done that you can begin to develop a strategy to approach your targeted business or businesses. I highly suggest compiling a list of potential businesses to sell to or partner with. Organize the list by how much your potential partners appeal to your business. This is an important step. Having a list not only keeps your organized but shows you that even if you do not succeed at first you can always move on to the next business on the list. Having a strategy such as this also can boost your confidence and give you leverage to negotiate if things do go your way. Now another strategy I suggest is not starting with your most appealing target. Give yourself the ability to fail a few times and understand that failing gives you the ability to refine your message and pitch so when you do get around to approaching your top targets you'll be ready for them. My final suggestion and this is an important one is to whenever possible approach the business in person. Phone calls give the other business an easy out to blow you off. You standing in their store or office makes it significantly harder. Even if they don't bite at first they'll remember you and your business increasing the chances that they'll think of working with you in the future.

Best of luck with your business and sales. If you want an ear to bounce some ideas off of don't hesitate to reach out that's what I'm here for.