If you're in need of a CRM so you can record interactions with customers and vendors, create inventory tracking systems, and more give Method a try. It's available through the QB App Store and has a 30 free trial as well. It allows you to do almost everything QBO offers inside the CRM and is very customisable.
There is a demo session you can schedule in but they're based in Toronto so timezones might be an issue.
(Disclaimer: I used to work for them)