Soneium is a Layer 2 Ethereum network developed by Sony Global and Astar Network's Startale. It aims to bridge Sony’s Web2 services, like Sony Bank, Music, and Pictures, with blockchain, bringing new users into the Web3 space.
To potentially qualify for a future Soneium airdrop, users can participate in mainnet activities and complete specific tasks. That’s why we’ve prepared a step-by-step Soneium Airdrop guide for you.
To participate in the Soneium airdrop campaign, you can transfer $ETH to the Soneium network using the official bridge. To do so, visit the bridge, connect your wallet, and move ETH to the Soneium network:
Then, go to the SoneFi, connect your wallet, and make some swaps. Conduct swaps regularly to keep your wallet on Soneium active:

Afterwards, go to the “Pools” page, and provide liquidity on the available pools:
Next, connect wallet to the KYO Finance, do some swaps and add the liquidity in pools:

You can mint some NFT on the Sonova: 
Finally, mint the domain on the Soneium network via website:
Good Luck!
Use the bridge;
Make some swaps on the SoneFi;
Add and stake liquidity;
Do some swaps and add the liquidity in pools on the KYO Finance;
Mint some NFT on the Sonova;
Mint the domain on the Soneium network via website;
Wait for official announcements and TGE.