Which seems to be the better choice?

Hello everyone! I already own a pair of kz castor pro bass bossted edition. It is a very balanced iem and none of the frequencies sound too much. Yes, it is a bit bulky but its worth it. I want to upgrade them i am eyeing the Moondrop Chu 2 and the kefine klean. I know kefine is the more expensive one and the moondrop is the budget king but which one of them will have a better sound quality in terms of music listening only and which one is a potential upgrade from the castro pro. Also, i use audiocular d07 dac.

thanks.