It has as much variety as it can support, given the makeup of its population.
It's more than just population. It is the "inventory" of what's available to program on.
Take Manhattan (or Brooklyn Heights or Long Island City) as a reception point. There are 20 full- or near-full-power signals above 92 mhz someone with an average quality FM radio can receive with a decent signal. (Plus a handful of "suburban" stations that make it into the city.) Three are non-commercial. One is public radio (WNYC), running news/info programs from NPR and others. Another is religious (WPLJ), running EMF's K-Love format. A third is Pacifica (WBAI). All three see themselves as having some particular "mission" they persue through their programming, whether you personally agree with that mission or not.
Two of the 20 do sports (WEPN, WFAN), and one now simulcasts 1010WINS. That leaves 14.
Three air Spanish-language programming (WPAT, WXNY, WSKQ). One superserves the Black population (WBLS), three play variations of hip-hop (WQHT, WPWR, WXBK), and one concentrates on classical (WQXR). That leaves six (WHTZ, WCBS-FM, WNEW, WKTU, WAXQ, WLTW) targeting the broad market with their particular variations of contemporary or classic hits.
Which one(s) get s-canned so "Amy" can have his/her personal iPod on a full-market signal? The answer is None. More likely you will find what you want from a suburban station (WDHA maybe?), or one of the SiriusXM channels. Or Apple Music+, Amazon Music Unlimited or Youtube Music. Or a niche streamer.
Amyisapunk's musical taste is reflected out there somewhere, but it may take some work to find it.