Unless you have a fat wallet and can afford to mass market, I suggest marketing to a small segment or small geographic area to see "if the dogs will eat it." Answer these questions: 1) what is your competitive advantage?, 2) how is your product unique or different fram anything else in the market?, What needs or what problems does your product solve?
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There are many trade shows and fairs happening locally as well as nationally. You may want to explore such options where you can slowly build up. If you have a product with a unique features may be you want to first have a few trusted customers.