Promote blog posts Plugin??

Not sure what you mean by a universal plugin.

Would something like https://www.hellobar.com/
be what you’re looking for?

Or perhaps https://ifttt.com/wtf

I am looking for a plugin that when I post a blog it will send it our through all of my company’s social media outlets; Facebook, Reddit, Twitter, pinterest, stumbleupon, etc.

Have you looked at this plugin?

https://www.ads-software.com/extend/plugins/social-networks-auto-poster-facebook-twitter-g/

That looks awesome. Thank you!