Find the wallet where you accidentally deleted the address from and click on "Manage".
Click on "Show" next to the heading "Used Addresses".
If the address has been used to receive balance before, then it will show up there.
If you are really struggling, then the next option would be to export your seed phrase from the blockchain.com wallet and import it in to a real wallet like Electrum (verify your download before installing!) which will show all your addresses clearly.