Trying to find my site name in spanish

Trying to find my site name in spanish
 

Hello,
I know some Spanish but not expert so I need ideas from native speakers.
I have a lot of web background and I want to start a forum site for Spanish speaking users in my subject. I learned that foro means forum in Spanish. But how to word the site name?
For example lets say my subject is a physical thing called “mysubject”
Should my site name be mysubjectforo.com? or foromysubject.com? or mysubjectSforo.com? or foromysubjectS.com or foroDEmysubjectS.com may be?
Which one sounds the best?
Also should I use .com? or .es is better? My target is the entire Spanish speaking people, not just spain or mexico or argentina or Hispanics in usa etc… would using .com be the best?

One of the most visited forums in Spain is "forocoches.com". And a well known investors forum is "inverforo.com".

So it is a good idea to name your forum site some like "foroXXXXX.com" or "XXXXXforo.com", though I mostly prefer the first option!!

The domain should be .COM as it will be a global site.

If you have some options to choose from ask me and I will give you my opinion!!

thank you so much...