which is the best headshell ??

looking fo a new headshell to open up the soundstage and create air and detail
Try Orsonic.
Orsonic 101

but use better Headshell leads (silver for example)

The Orsonic is one of the greats, but which one for you depends on the effective mass that your particular tonearm/cartridge combination requires. If you tell us that, we will be able to give you a more specific answer.

the best headshell is no headshell