The OPENSEA token is expected to have a snapshot airdrop in April. There is one last batch of XP waiting to be distributed. You can go to the OS2 version to earn XP through points. The airdrop will be distributed based on XP rankings and OG user snapshots.

The other one is the capital-raising beast of the Solana chain, pump.fun. The founder once famously said it would be the largest airdrop in history, but there has been no news since. There are rumors that it is conducting public offerings on major exchanges. In any case, just interact with more wallets.