User blog comment:Merrystar/Adopting a wikia/@comment-26200162-20150610133526/@comment-25535870-20150610172226

the way you state this, "get one", sounds kind of random. so, aside from the rather explicit article above, there is the adoption page and instructions, and other content linked above as well.

but are you sure you don't want to 1) contribute to a wiki that you already like or, 2) start a wiki for something new? no one adopts at random.