Android For Windows 7 [ FREE PACK ]
But if you have a Windows 7 PC today, your priority should be disconnecting it from the internet and using it for offline tasks, not chasing modern Android apps. For that, a cheap Android tablet or a modern Windows 11 PC with WSA is the proper solution.
For developers, Windows 7 was the workhorse for Android app development using Eclipse or early Android Studio, with the SDK emulator as a necessary evil. android for windows 7