We can list some of the waves of investment in the crypto world:
1.investment of payment value: Bitcoin, Litecoin, DASH ...;
2. Platform blockchain for projects: Ethereum, WAVES, EOX ...;
3. Separate ecosystem development projects for health, transportation, education ...;
4. Crypto banking & payment methods;
5. Cryptoxchanges: Binance, Houbi, OKEx ...;
6. Profit from staking;
7. Loan protocols;
8. Profits from DEX's liquidity pool.
The 8th wave is still strong, wave 2 is also being developed, it is difficult to determine what the next wave will be. Maybe CBDC or NFT, I hope that blockchain-based social networks will explode and bring profit to users.