Some of my favorites:

• Launcher: Niagara
• Rom: LineageOS
• Browser: Firefox (with DarkReader and uBlock Origin)
• Reddit: Relay (is this ending?)
• HackerNews: Harmonic
• Lemmy: Jerboa (haven’t tried alternatives)
• Podcasts: AntennaPod (haven’t tried much else)
• Identify stuff: LeafSnap (plants), SoundHound, Merlin (birds!)
• Books: Moon+ Reader Pro
• Barcodes: Catima
• Computer stuff: KDE Connect
• File stuff: Material Files and ZArchiver
• TTS: @Voice Aloud Reader
• Passwords: Bitwarden
• Icons: Crayon or Viral
• Keyboards: MS SwiftKey, maybe someday FlorisBoard, sometimes Hacker’s Keyboard
• Scrobbles: Simple Scrobbler
• Video: VLC and NewPipe
• Weather: Weawow

It’s already elsewhere in this thread but Niagara launcher is fantastic and worth a try.