You know that ownership has to be proven, right?
If you don't have account info or even better the private keys, I'm not sure who can help you.

About blockchain.com, if you have been using their services for those wallets, you can try their support (although imho your chances are nearly 0). And this would mean that you can prove you had an account there and they will provide you your private keys or a working account.

"Anyone from bitcoin" clearly cannot help you. That's is not a private company and the only way to access those funds is if you have the private keys.