While the Ethereum blockchain is the main blockchain used for NFT minting, there are actually a few different blockchain options users can choose from. In addition to ETH, Solana, Tezos, Binance Smart Chain, and a few others also support NFTs, and these other options can be more affordable compared to the high gas fees users pay to transact on the Ethereum blockchain. Another option is Flow, which is a newer blockchain that originated in 2019 but is built as a scalable, high-performance blockchain geared toward creating NFTs and decentralized apps.