Bonobo is a decentralized exchange that allows trading of some of your favourite low fee crypto. You can directly buy Stellar Cannacoin using Algorand, Banano, Nano, Polygon or Dogecoin. Exchange rates are listed when you select a currency pair and no registration/login required. Note: this is intended for low volume trades. When you are making a trade it will let you know the min/max that can be exchanged on that transaction.