With our handy computers able to crunch vast amounts of computational work on our behalf, there are plenty of specialized software that you can boot up to explore computation differently.
So, here is a combination of preferences and what I so happen to be using.
Foundational Wares
Computer Operating System: macOS
Preferred Linux distribution: Debian
Entertainment
RSS Reader: Reeder (Currently testing alternatives)
Music Player: Doppler
Productivity
Bookmark Manager: Anybox
Web Browser: Safari
Word Processor: Notes.app (why?)
Social
Desktop (macOS) Mastodon Client: Mastonaut (Active Fork)
Mobile (iOS) Mastodon Client: Tusker