Osmosis Frontier makes it possible to easily trade Echelon in the Cosmos ecosystem. It is a DEX based on full permissionless listing and curation of assets. There are dozens of assets ready for swapping. All packaged in a neat interface!
With Osmosis, you can deposit and withdraw your ECH via IBC (inter-blockchain communication). The IBC transactions are done through the IBC page of the Echelon dapp.