It should be noted that I prefer singers who can actually sing, rather than shout, scream, or mumble.
It's not enough to say "male" or "female" or "instrumental only". It depends on the genre, and even the song. Some songs are written for a specific vocal range, and you're not likely to find many men who can sing the really high soprano notes or women who can sing the really deep bass notes. Some songs are much better without lyrics.
As to what I prefer, it depends on the mood I'm in. I have an Amazon Prime membership, so I decided to explore a bit to see what's available to Canadian subscribers (it's likely nowhere near what's available to American members). My latest find includes dozens of madrigals, by the King's Singers. I don't understand most of the words, but who cares? It's enjoyable to listen to, and it's relaxing. I just did a YT search, and it looks like bits and pieces of their TV documentary series about madrigals that was shown on PBS in the '90s are around in various clips.
Another style I like (providing the singers are good at it) is
a capella. Rockapella did a lot more than the theme music for
Where in the World is Carmen Sandiego? and various Folgers coffee commercials.
As for instrumental... let's just say that I never appreciated some instruments until hearing what really skilled musicians can do. As I said in another thread, for me it's not enough to be note-perfect. There has to be
emotion involved. And I can appreciate a display of skill and artistry, such as some of the soloists showed in Yanni's "Live at the Acropolis" concert.
There's a music series currently running on PBS called "Now Hear This!" and it's about a violinist who is traveling around Europe to learn about various composers and how they incorporated violin music into their compositions. The latest episode was about Bach, and I've played a lot of his stuff on the organ. It was fascinating to learn about other instruments used.
I've been revisiting some of the songs I liked back in the '70s. There are a couple of videos on YT, showing the same group performing the same song, decades apart. They're still good.
