Lin in silver, Oak in the top right, Rory on the top left. Quite confident about those.
Moving into more guesswork, the one to the right of Hamilton looks like a sloppy Leslie Odom Jr. It's not how he usually signs his name (He tends to get more fractured when he's rushing, not more simple) but I think that's his
Far right on the right arm of the star looks like Daveed to me. Again very simple, and without the running-out-of-ink-sharpies he often has, but the letter formation looks correct.
Bottom right arm of the star looks like it might be Betsy, as noted. Unusual on a boarderless playbill.
After that, I don't really know. To the left of Hamilton, I see a P and would again suggest a simplified Pippa perhaps? She's a signature I think I only have one example of and I don't know it well, but if I had to make a guess that would be it. Bottom left I have no idea, I think I may have an example of it and will look through my book tomorrow.
May I ask where you got it?