F-Droid is an installable catalogue of FOSS (Free and Open Source Software) applications for the Android platform. The client makes it easy to browse, install, and keep track of updates on your device.
I always look for apps on fdroid first if I need something
Me too, and if it's not there then I recently discovered Aurora Store which let's you download from Google Play anonymously and is itself available on F-Droid.
How's the Aurora Store working right now? Last time I used it, anonymous accounts started getting rate-limited pretty severly, rendering it quite painful to use
The latest versions of Aurora store have a setting to automatically search in the browser which evades the playstore-side rate limiting. It's a little annoying, but that's on playstore, not aurora.