Hi guys, I moved from Europe to Peru. When I play i have 6h different of time, so is difficult to play with other ppl. Witch server do you recommend for my timezone? I think it must be from the USA because I want to play with English speakers. Could you support me 
Congrats on your move! Hope everything got moved safely as well.
Now on to the bad news, the regions are entirely seperate save for very few items on the same BNET account. What this means is: You cannot move your toon and/or other associated items to another region for example from EU ↔ US.
You would need to buy an US game license, and restart anew at the realm of your choosing. As for the realm suggestion, try Sargeras-US perhaps?