The first thing is, click a search botton, or use google to answer that questions,  theres a bunch of answers you can get in google to know which of your tokens are already listed in the market. Or use blockfolio to track the exchange site of your tokens. But if its not listed yet, you cannot be use that token. Just wait for that tokens to be listed first. Or follow your projects announcement in their social media on when they do a listing request.