sharepoint online – What you guys use for a VMS system or VSI?

I would like to have everyone’s feedback on a vendor management system.
Currently, we use Dock 365’s vendor management service (it’s alright however we need one more application which is a bit simpler to utilize) we would like to upgrade it and want to purchase a new one for our sub-team works.
I understand each organization is different, so as its requirements, yet I’m interested to know what do you use so that I can make the best decision for software.
Concerning profitability, our current software is pretty useful for correspondence with our team and Teamviewer for remoting into work at home and so forth. We don’t prefer to another share point app as we use it already. Just need a simple budget software which can give us a new experience.