Best Productivity Apps to Complement Notion, Trello, and Slack?

I’ve been trying to streamline my productivity, and I’m curious what apps others are using. I currently use Notion for note-taking, Trello for project management, and Slack for team communication.

Does anyone have suggestions for apps that work well alongside these for time tracking, habit building, or automation? Any recommendations or workflows that really boost productivity would be appreciated!

Thanks!