Alternatives to big three vuln management

We used to be a Rapid7 customer, not happy with the support. Currently we have tenable. Now not happy with the support or product. Have not heard good things about qualys.
Are there any other vulnerability management softwares like the three above? Need to support dozens of remote sites, large IP ranges, and thousands of assets.

alternatives big customer cybersecurity good large management product qualys rapid7 support tenable things vuln vulnerability vulnerability management vuln management