Vadar Series

Snobbish, deluded and dumb. There's no freaking way the AM16 sounds "cluttered". OP's earwax must be impacted, which is probably given he doesn't hear the flat coldness that the apple dongle has to it's sound signature. PRX (if you can get one without QC issues) AM16, Decet, ZS12 Pro X are all fantastic sets. And sets like the Vader Balanced and Kunten are pretty great when you factor in that they're $10. I dgaf how stupid their marketing is or what shitty things the brand did previously with bargains like that. The hurrr durr KZ bad group think is so dumb and seems to be parroted by people that haven't been into iems pre 2020.. what you can get these days in the budget space is nuts and KZ's sets in the last year or so are even out competing a lot of other budget sets on price/performance.

I just entered the IEMs world with one lucky purchase of KZ Vader balanced in heavy discount for only 5 EUR. I have never experienced so clean bass as in the beginning of the Pink Floyd - Dark side of the moon album. I’m not a pro user and only wanted to try it out for not so high noney if daily use case will not come. But despite the use of AirPods in the gym, I use only these KZs for everything else.

vader hires is worse than bunny, elua is about same just built better

From that list Castor or Castor Pro but honestly I prefer Vader Balanced, Zenith, AM16, and ZS12 Pro X as my favorite KZ IEMs.

KZ Sonata, AS24/Pro, ZS12 ProX (down switches) and some of the Harman/Hi-res versions of their more budget stuff like Vader. Tanchjim Ola or 4U/Fission with the bass dial turned down. Or for a KZ 1DD The Zenith is very good and very neutral with down switches. Hexa can sound "wooly" without EQ sometimes so I don't think it would be clear enough for you. A good alternative with similarly linear bass and overall brighter would be the Twistura Sigma or ZS12, depending on if you want vocal or lower treble prominence. https://preview.redd.it/3nirp16onyef1.png?width=2095&format=png&auto=webp&s=0c768cd3893981b6b26271ab63362290d9d50dca

try kz vader hi resolution, it has a great balanced and not fatiguing sound profile. nice warm mids and enough bass. and the switches actually make audible difference.