LayerZero's flagship cross-chain bridge on the Omnichain Fungible Token (OFT) standard. Not cheap and fees can be unpleasant, unless you pick the economy mode where you'll wait 5 minutes per bridge. But this is one of the most battle-tested bridges in DeFi with $20B+ cumulative volume. Also one of the main memes in the airdrop farming community - people worked this bridge for years praying to Bryan Pellegrino and the ZRO airdrop.