[z] Arista  Suggeriti da Dan Abnormal 
Twitteru  Suggeriti da rocamaco 
Pico Black  Suggeriti da MAWNS 
Social Logos  Suggeriti da Utente cancellato 605223 

Hey you can use Arista combined with pico if everything else fails. I did it in the past.

I think is this font.

I'm almost convinced that Social Logos is the right font if you just want the Twitter logo.