This used to be done with the help of legacy publishers, but indies are on their own and we rarely take into account much more than how it sounds (and we can get quite attached to titles).
As an example, we've been writing using a working title 'Cut Throat' that I quite like. Our main antagonist is in journalism (a cut throat industry) and we are writing a crime thriller, so it fits.
The problem is twofold here - #1, there are already three books using the same name out. This is a huge no-no, you don't want to be confused with them. KDP has made this a lot harder as there are so many titles about that a completely unique title becomes harder to come up with.
#2 Google will come up with products like cut throat razors, as well as even less suitable links a few pages down (Cut Throat as a search term brings up suicide websites - clearly not what we want to be associated with!). Please Google your prospective title, and parts of it (e.g. the first two words) to make sure you aren't linking your work with something unsavoury.
So what we want it a title that is:
· Links to our genre (ideally making it clear what genre it is)
· Isn't in use by other authors (at least in the same genre)
· Doesn't link to other industries, products or services
So our book would go from the working title of 'Cut Throat' to "Cut Throat, an Inspector Morton novel" or similar. Thus your works will cross-sell each other. It's also easy to do with Amazon as they give you a box for series titles.
Let us know your thoughts - or links to other articles in the comments section.