Looking for lawyer/agency for work Visa processing (New York)

Hello! I’m looking for any recommendations or experience you could share.

We need to process visa applications for Protected content in our company (different nationalities) and would like to find a reliable and efficient immigration lawyer or an agency to help review and process all needed documentation.

I did notice a few recommendations in earlier posts but did not have much luck with those.
Thank you!
Kind regards, Kati