Rocketswap is a decentralized exchange running on Lamden. To acquire TAU on Rocketswap.Exchange you can use LamdenLink.com to bridge your assets to your Lamden Wallet. You can find a wallet guide here and a bridging guide here.
Binance Smart Chain (BSC)’s Pancakeswap offers a BNB/wrapped TAU pair. You can unwrap your BSC wrapped TAU using LamdenLink.com.
Big.One centralized exchange offers a USDT/TAU pair for mainnet TAU.
TxBit.io centralized exchange offers a ETH/TAU pair for mainnet TAU.