There is also the possibility that foreign nationals could qualify for an O-1 visa. If foreign nationals have evidence of their renown in the professional field (such as press or awards, for example) an O-1 may be worth exploring as an option.
I Work with an O-1 Visa Holder
Foreign nationals who work with O-1 visa holder might consider the O-2 visa. This option is for those who have become essential members of an O-1’s team, so much so that they are indispensable to the O-1. If this is the case, the petitioner of the O-1 may be able to petition for the essential teammate or co-workers under an O-2.