I mean novels set in the Star Trek universe but not involving the Enterprise, DS9, any characters we might have heard of (except in passing maybe "Did you see that report about Kirk on the news, hes with that chick now??"
That would cover most of the Vanguard
series, the New Frontier
series, the Corps of Engineers
Not really, they are all part of "Star Trek", as are your own excellent DTI books. I'm asking about books not about Star Trek but use the universe as a backdrop. For example a detective story on Alpha Centauri, a hospital drama on Federation Earth, a romance on Kronos