https://broadwayplus.com/artists/ I happened to find that Bianca Marroquin is associated with BroadwayPlus. It lists artists who offer private coaching, as well as video shout outs (like a Broadway version of Cameo?) It's worth looking into.
"Noel [Coward] and I were in Paris once. Adjoining rooms, of course. One night, I felt mischievous, so I knocked on Noel's door, and he asked, 'Who is it?' I lowered my voice and said 'Hotel detective. Have you got a gentleman in your room?' He answered, 'Just a minute, I'll ask him.'" (Beatrice Lillie)