I recently got some Moondrop Arias and am really liking them. They retail for about 80USD.
BudgetAudiophile
A place for AUDIO enthusiast to share, discuss and listen to others people setups
I also recently got a set of those. I've really been enjoying them for at the desk and on the go.
KB Ears are great and cheap. You can even get a balanced output cable if you're looking for an upgrade: https://www.amazon.com/gp/aw/d/B08X49KG74?psc=1&ref=ppx_pop_mob_b_asin_title
It's quite hard to beat the latest Crinacle collaborations if you want a neutral/natural sound.
7hz Zero 2 https://www.audiosciencereview.com/forum/index.php?threads/7hz-x-crinacle-zero-2-iem-review.50534/
TruthEar Zero Red https://www.audiosciencereview.com/forum/index.php?threads/truthear-x-crinacle-zero-red-iem-review.44865/
I own the Zero Red and they are quite good to my ear.
https://www.audio-technica.com/en-us/headphones/type/in-ear/ath-e40
Audio Technica earbuds for 100 USD (92€)
Next step up from their site is:
https://www.audio-technica.com/en-us/headphones/type/in-ear/ath-e50
But it's twice the price.
I've been using KZ ZSN Earbuds since 2019, and they're going strong. Not the best, but for $25, they're surprisingly durable, and get the job done.
Seconding the KZ ZSN earbuds. I have been using them for a couple of years and they are great, especially for the price. I broke one of mine by rolling on it and it crushed the pin so without a delay I ordered a second pair. To be clear, nothing would have survived my mistreatment unless machined from steel or similar, but they survived for ages even with that abuse.