You won't find any. Once you have the phone, open Play Store. If you see the app, it's compatible. Or, once the phone is registered with your Google account, go to
Google Play and find the app. If it says some of your devices are compatible, scroll down and set the dropdown to the new phone. If the Install button is still active, it's compatible.
If the decision to buy the phone rests with compatibility, you have a problem, and if it's a cheap Chinese version of a well-known phone it may not even be Play Store compatible (IOW, you won't be able to get apps from the Play Store, even if the app is compatible).