Peeper allows you to keep up to date with your favourite Twitter accounts right from the Mac Menu Bar.
Most social media apps are also accesible from your Mac’s Menu Bar App.
Check out these Mac Menu Bar Social Media Apps:
Quickly tweet what’s on your mind from the Mac’s Menu Bar.
Menudon is a Mastodon client for your Mac’s menu bar.
Tweetshot sits quietly in your menu bar, only to appear when you hit the keyboard shortcut to launch. No advanced features or customizable options, but it does what it’s made for: tweeting.