Any recommendation for in-ear buds or earphones?

Mainly using for purpose of listening to spotify on my iPhone 5s- no further amp

Currently using the apple earbuds which to me is already quite good as it's not muddy and good clarity

Tried the klipsh X11i but it only gives me a small step up (in my opinion) of quality is not worth that >1000 bucks price tag.

Just wondering any small in ear buds or ear phones that are below 600ish that surely is better than apple earbuds

Already own an audio technica es7 but seldom used as headphones not convenient for me to carry around.