If you've set up any Ethereum based wallet, e.g Metamask or Rainbow wallet, you already have an eth address. Your Eth Address is how people will send digital assets to you, you can find it, view it and copy it in these places.

1. Open your Metamask and click your 'eth address' at the top. This will copy it to clipboard.
2. Click the 3 dots to 'view on Etherscan' (Etherscan is a block explorer, meaning it can see all the transactions made on the Ethereum Blockchain, different blockchains have different explorers)
3. View your address and transactions on 'Etherscan'
4. You can now send this Eth Address to other people to receive digital assets compatible with the Ethereum blockchain.