There are several popular NFT marketplaces and blockchain platforms that you can use to sell your digital art as non-fungible tokens (NFTs). Some of the most popular options include:

  1. OpenSea: OpenSea is one of the largest and most popular NFT marketplaces, it supports a wide variety of digital assets, including art, collectibles, and even virtual real estate.
  2. SuperRare: SuperRare is a curated NFT marketplace that focuses on digital art. It’s a great platform for artists looking to showcase their digital art to a discerning audience.
  3. Rarible: Rarible is a decentralized marketplace for NFTs where you can buy, sell, and mint your own NFTs.
  4. KnownOrigin: KnownOrigin is a digital art marketplace that allows artists to mint, sell, and bid on NFTs.
  5. Nifty Gateway: Nifty Gateway is a platform that allow artists and creators to launch timed NFT drops and auctions, allowing you to reach a large audience.
  6. Ethereum (ETH) blockchain: Ethereum is the most popular blockchain platform for NFTs, you can mint, buy and sell NFTs using this platform.
  7. Binance Smart Chain (BSC) blockchain: Binance Smart Chain is a newer blockchain that is gaining popularity due to its low gas fees and fast transaction times.
  8. WAX blockchain: WAX is a blockchain that is specially designed for gaming and virtual item trading.

It’s worth noting that different marketplaces and blockchain platforms have different features, fees, and audiences, so it’s important to research each one to find the best fit for your digital art. Also, keep in mind that the crypto market and NFT market is highly volatile and it’s always important to do your own research before making any investment.