Note taking: In general Evernote, but for my newsletter, I do initial write-up in Microsoft Word and editing in Google Docs (easy to get feedback)
Calendaring: Fantastical + GCal dekstop (via https://fluidapp.com/)
Email: Superhuman
Task Manager: Things 3
Articles: Pocket
Other: Grammarly, Sleep Timer, Fitbit Charge 3
Other Mac Apps: Contexts.co, AlfredApp, Command E