Looking for advice

[Luke-k95]

Hello sailors

I have been browsing and am interested in an open top catamaran, I cannot for the life of me find out what they are called, myself and my partner are moving away and are wanting to eventually set up a catamaran party business, we are just gathering research at this point. I have attached some pictures of the style of catamaran I am talking about. They seem to have no salon and instead have a kazeebo like structure in the middle which is exactly what we're are looking for.

Are these catamarans bought like this or are they custom made?

What are here style of catamarans called?

If anyone could advise us that would much appreciated.

Thanks for your time.