Best Multi-Vendor Hosting Website

I recently purchased a cs-cart multi-vendor software, and I would like to know which host will be suitable for startups and could be upgraded later and expand business with services to improve the functionality.

I have heard about web hosting in the past. But what is multi-vendor hosting? I would like to know more about it.

X3host is supporting the software in full

I am using Cloudways for multi vendor hosting and you can upgrade it later. You can check their website for more details

I would like to know more about this multi-hosting website. I recently built up a new website and for this one I need better web hosting service. What do you recommend?