If you're a native Stellar wallet existing user or older, there's a free AQUA token airdrop going on the right which you can sell or hold if you want.
Aqua is a new token created on the Stellar network and it was said to be designed to supercharge trading on Stellar, bring more liquidity and give control over how it is distributed across various market pairs.
I will advise you to check the email you use to register the wallet and if you receive an email showing the screenshot below it means they have sent you your free airdrop but you need to claim. Login Stellar wallet go to pending transactions select the first sent airdrop token and claim it but if you don't know how to do this, click email link sent to you but I will advise you to log in to your wallet through the direct link before clicking on the airdrop claim link in your email just to be more careful.
If you don't have enough XLM in the wallet you cant claim the airdrop token and the airdrop has 5 phase which was scheduled from the 16 of August, 16 of September till Jan 2022 but you need to make sure you claim this airdrop token before the expiry date.
If you don't get the airdrop, go to this
https://aqua.network/ and check if your Stellar wallet is legible for other Aqua airdrop.
Note: I don't know if every Stellar wallet is applicable to this token but I got it through my native Stellar wallet used since 2019.