My list:

• K-9 Mail - Email client
• Media: Vinyl, VLC, NewPipe
• Organic Maps
• Nostr clients: Amethyst, Primal
• Browsers/Internet: Fennec, Mull, Tor Browser, Orbot (Tor proxy)
• Aegis - TOTP 2FA
• Obtainium - to install and manage APKs directly from GitHub or website
• Exodus - provides list of trackers for installed apps.
• Geometric Weather

AntennaPod is a really good podcatcher that keeps all the records on the phone.