What finally worked well for me was an "ear loop" tool, a small, cheap plastic tool with a safety guard, that makes extracting the wax quite easy. They cost less than $10 USD, do not rely on uncomfortable squeezing of water or liquid, nor do they just push the wax farther in (unlike a cotton swab).
It was a big deal for me to discover these existed, and when I did, I was surprised I hadn't heard of them.
I had a 'rattling' issue, but mine correlated with moving my head. If I held very still, the sound was fine. This didn't happen at first, it developed over time. I wondered if the issue was either loose/dirty silcone tips, even though I was wearing the best fitting size (and they passed the ios ear tip test). Cleaning the tips didn't make a difference.
So I bought some new foam tips from www.complyfoam.com , and to my pleasant surprise, the rattling stopped.
Not sure if this is different from the vast number of other reports, but fyi.
We currently use this to store security log data, but think it's an interesting midpoint between having no schema at all vs requiring schema registries to do useful work.
It was a big deal for me to discover these existed, and when I did, I was surprised I hadn't heard of them.