My review on Moonbuds HeronIts looking like the Moonbuds Heron might be a slight upgrade to the Shozy BK. They are the ones I've been eyeing. I really like the BKs, but they can get a bit shouty. Their timbre is excellent though as is their balance of musical/analytical and their mids.
https://www.head-fi.org/showcase/moonbuds-heron-vs-moonbuds-nightshade.23383/reviews#review-21628