Great Star Trek novels?

One of my goals for this year is to read more often as its a habit I really want to get back to.

Are there any Star Trek novels ( particularly based on TNG or DS9 ) that are really good?

I know the quality of Star Trek novels varies wildly, only really interested in the best of them as I dont intend to read everything out there, something that feels like a real book for lack of a better way to put it.

Thanks for any input people can provide!