Consider including IzzyOnDroid F-Droid repository
From https://android.izzysoft.de/repo/info:
This is an F-Droid style repository for Android apps, provided by IzzyOnDroid. Applications in this repository are official binaries built by the original application developers, taken from their resp. repositories (mostly Github).
It has 525 apps at time of comment, which would be an nice big jump in the number of apps to install available out of the box without additional tweaking.