[Emerald Core]

First of all, I appreciate the site and its experienced audiophiles who dedicate their valuable time to share and give advice. 
 
On-topic: 
With all requirements met and the perfect setup. I would like to know the top 5 IEMs regardless of the cost 5$-10000$. 
 
I have heard about companies like:
- Weston
- Final Audio Design
- Sennheiser
- Shure 
 
It would be perfect to list the IEMs by the model.
Example:
- Weston W60
- Senn IE800
 
This can be silly to some, but can also be understandable to non-audiophile users. It is time for me to find the one and only IEM that I can take anywhere. 
 
Experienced people's feedback is greatly appreciated.

 

[Mython]

  First of all, I appreciate the site and its experienced audiophiles who dedicate their valuable time to share and give advice. 
 
On-topic: 
With all requirements met and the perfect setup. I would like to know the top 5 IEMs regardless of the cost 5$-10000$. 
 
I have heard about companies like:
- Weston
- Final Audio Design
- Sennheiser
- Shure 
 
It would be perfect to list the IEMs by the model.
Example:
- Weston W60
- Senn IE800
 
This can be silly to some, but can also be understandable to non-audiophile users. It is time for me to find the one and only IEM that I can take anywhere. 
 
Experienced people's feedback is greatly appreciated.

 
 
High-end audio doesn't work like that. When you reach a certain level of performance, it becomes more a matter of personal taste, as there are many technically-capable options available.
 
You can get some guidance on what might suit your tastes, in threads such as these:
 

Multi-IEM Review - 352 IEMs compared

multi-custom-in-ear-monitor-review-resource-mfg-list-discussion