My go to place for android games and apps, easy to download APK files
APK Pure - Download apk for Android with APKPure APK downloader. NoAds, Faster apk downloads and apk file update speed. Best of all, it's free
Phandroid - Phandroid is a website where you can get your favorite Android apps downloaded for free.
APKCombo - APK Downloader - Download APK & OBB files from Google Play Store and APKPure (Latest Version)
APKStone - All apps in one place. Download APK files or from Google Play Store.
AndroLib - AndroLib is a free source over the internet that allows the Android smart devices users to get an instant and probably the free access to all kind of Android apps and games available in the Android Market over the internet.
APKMirror - Android Market and APK Downloads