up to 100 euro

also whats your opinion about terms like "Spatial Audio" and "HTRF" are they useful

Thanks

 

Truthear red and then eq.

 

best overall
Bose Ultra Open Earbuds
Pros: Great sound, compact design
Cons: Steep price
$249.00

Shokz OpenFit 2
Pros: Good fit, controls, sound
Cons: Limited colors
$179.99

best design
Nothing Ear (Open)
Pros: Stylish, good sound
Cons: Protrude from ear
$149.00 $189.00 21% off

great sound
Shokz OpenDots One
Pros: Great sound, comfortable fit
Cons: Pricey, awkward controls
$199.99

great fit
Soundcore AeroClip
Pros: Comfortable, good sound
Cons: Awkward controls
$129.99

 

I've recently done quite a bit of research on this, and I'm currently eyeing Truthear Hexa to use for producing.

 

In my experience your search should involve "IEM" instead of "earphones" it narrows the search to "in ear" devices that are meant for monitoring on-stage so audio fidelity is of the utmost priority. That said, the Truthear products have a great rep. I went with the KZ brand to save some money and they are fantastic. The sound quality vs price point is hard to beat. Good luck!