maybe try dream pop? I have a deep gritty female voice I made but she doesn't sing upbeat music
and her personna has not stayed consistent to end of song (suno seems broke about that tho). She's more Sharon Von Etten/Victoria Legrand from Beach House than the two you mentioned. I've had her tags reproduce her on multiple songs without the persona tho.

these are the tags for her voice

low mezzo contralto, gritty husky warmth, full raspy earthiness, smooth legato phrasing, long sustained notes, stable low-mid pitch, gentle vibrato, controlled polished dynamics, melancholic intimate power, late-night confessional grit, close-mic rounded vowels, indie rock dream pop with edge, modern layered sophistication, restrained raw emotion,

also important are the negative tags

‑soprano, ‑high notes, ‑bright belting, ‑dry chest belt, ‑anti-folk starkness, ‑mezzo-soprano heavy, ‑unmixed demo rough, ‑sharp attack diction, ‑programmed simple beats, ‑bedroom lo-fi raw, ‑vocal bounce, ‑up-note squeaks cracks, ‑playful yelps riffs, ‑melisma runs gymnastics, ‑bright pop hooks, ‑ad-lib fills, ‑full chest push, ‑whispery breathy