I'm not sure if you're ill-informed about Twigs before she was Twigs or if you have never heard any Tinashe song other than 2 On But, you can pick practically any song from Tinashe's Reverie mixtape (and some from her Black Water mixtape) and find very similar dark, haunting beats and drops with protruding bass & airy, occasionally powerful vocals laced. She has a bunch of Papi Pacify's & Two Week's
__
Also another answer to your first question, how about Doja Cat?
There is nothing genre defying or otherworldly about the type of music Twigs makes.
But, you can pick practically any song from Tinashe's Reverie mixtape (and some from her Black Water mixtape) and find very similar dark, haunting beats and drops with protruding bass & airy, occasionally powerful vocals laced. She has a bunch of Papi Pacify's & Two Week's 
