Mutliple Sites on Different Domains with their Own Themes on Same VPS

To run them all from a single installation, you’ll need a Network.

How about the multi domain plugin from wpmudev.org

I also will need to edit each website’s templates to add google ads, advertising etc.

Or… the free (and supported on here) WordPress MU Multi-Domain Mapping plugin that does the same thing.

And yes, you will be able do edit each theme. BUT edits will save in the theme so you’ll either need different themes for each site, or you’ll need some way of displaying the information on each site using the same thing (something like options, shortcodes, etc).

Hi I tried using Network as you proposed but it only supports

Sub-domains — a domain-based network in which on-demand sites use subdomains
Sub-directories — a path-based network in which on-demand sites use paths

but I require sites for different domain names like https://www.aa.com, https://www.bb.com, https://www.cc.com

Hope it explains.

You need the Multi-Domain Mapping plugin that I linked to earlier.