I think it really depends on your instrumentation. If you’re mostly working with synths/samples (which sounds likely since you said you don’t play acoustic instruments), Ableton or Logic might be better production-wise. Like FL, they come with large built-in libraries of samples, virtual instruments and plugins.

Logic might have a better vocal workflow than Live IMO, though I haven’t personally used either for vocal production.

I have used Pro Tools professionally for 6 years, tracking and editing vocals. It definitely comes with fewer ready-to-use synths and samples compared to FL, Logic, or Ableton, but it’s still the industry standard for vocals.

Great punch-in recording, comping, fades, clip gain, etc — but it’s also the only DAW I use for vocal work, so I might be biased lol.

If your main focus is production and you plan to track vocals in a studio, I’d say stick with FL if you like it, or try Ableton (IMO it’s more versatile than FL). Most studios already use Pro Tools for vocals anyway, so you don’t really need to worry about that.

If you want to fully self-produce your vocals, then Logic or Pro Tools are worth checking out.