Create the app on the Google Play Store, create the first production build on EAS, upload it to Google Play, and publish it to an internal testing group.
For sharing apps via Google Play, you will need a paid Google Play developer account. It is preferable to have an organisation account if you're looking to monetise your app (you'll need to verify your organisation before you can create apps). But if you you are building apps as an individual developer, you can use the individual developer account.
When creating an individual developer account, you have some additional restrictions:
๐ฎ Google Play Console
๐ Register for a Google Play Developer account
๐ Required information to create a Play Console developer account
๐ QR Code Generator