fUSDT is the only official cross-chain USDT wrapper. Use multichain.xyz to bridge USDT into fUSDT on a number of chains like Ethereum, Fantom or Binance Smart Chain (BSC) without using the Binance bridge.
Ellipsis Finance offers an fUSDT Metapool. This pool is incentivized with ICE and EPS, the native token of the Popsicle protocol: https://popsicle.finance/
Make permissionless transfers of USDT from Ethereum to BSC on https://multichain.xyz/. Multichain transfers your USDT onto BSC for fUSDT: