I've heard, to name a few good ones: K's Black Ling, Rose Mojito, Shozy BK, Rose Masya, Penon BS1 Official.It's clear.
Your opinion?
The options?
I'd say the Black Ling is potentially the best, Mojito next. If my BS1 had a stronger sub bass and better comfort id rate it very highly, lovely detail and bright but smooth response for the price. Black Ling sounds like the BS1 with a big bass boost, but it's very pick of foams choice.
Others I haven't heard but are very well regarded include Cypherus Red Dragon, Zoomfred/Pro, Cax Black, Moondrop liebesleid, K's Poseidon, Zen 2.0 black edition, Simphonio Dragon 2+...