Bebop supports a wide range of tokens within each blockchain supported for trading on Bebop. You can also copy and paste any supported smart contract address to trade if there's sufficient liquidity for swapping.
Please note that if you want to sell native blockchain tokens (ETH on Ethereum and any L2 chains like Arbitrum or Base, MATIC on Polygon), you will need to convert these into their so-called "wrapped" versions first (WETH and WMATIC respectively). This has been seamlessly implemented as part of your trade; however, if you have the wrapped version of the asset, we encourage you to use this rather than using native which then needs to be wrapped for the trade.