Recommended and mentioned products
IPFS is the permanent web. A new peer-to-peer hypermedia protocol.
Another example: https://ipfs.io/ (database example).
Ethereum is a decentralized platform for applications that run exactly as programmed without any chance of fraud, censorship or third-party interference.
Check out https://ethereum.org/en/ and the applications.
Raise fantasy creatures called Axie on the Blockchain
You also might be interested in https://axieinfinity.com/ (game example).