You can add multiple containers to a page where you have your reference selector, and set conditional visiblity on each of them which will become visible depending on what’s in the ‘NameOfService’ attribute.
Alternatively, you can create a new page or popup for every form that you want to display. On the reference selector you can then add an on change microflow which will automatically run every time a value changes. Inside the microflow you can then create your own logic with an exclusive split branching out to to different pages based on what’s in $NameOfService attribute. With this method you will end up opening a new page, so make sure to commit any changes to avoid losing progress.