Bear market has hurt cryptocurrency. Bitcoin (BTC), the first and most popular blockchain-based crypto, is down 57% so far this year.

Ether (ETH) Bitcoin was a crypto pioneer. Ether (ETH), the Ethereum blockchain's native cryptocurrency, ranks second.

Polygon (MATIC) Some investors aren't as interested in Ether as an altcoin as they are in Ethereum's development, says KingsCrowd's Vin Narayanan.

Monero (XMR) Monero hides IP addresses used for blockchain transactions, unlike Bitcoin. This obscures the transaction log.

Uniswap (UNI) More than just a coin, Uniswap functions as a cryptocurrency exchange, much like Coinbase Global Inc. (COIN) or Binance.

Aave (AAVE) A diversified crypto portfolio should include Ethereum-scaling and privacy coins, says Narayanan.

Chainlink (LINK) Blockchain "oracle" Chainlink. An oracle connects a blockchain to off-chain data.

Decentraland (MANA) Metaverse is an unavoidable topic when discussing cryptocurrencies. Meta Platforms Inc. (META), Apple Inc. (AAPL), and Microsoft Corp. created the metaverse.