Hi there!
I saw that Peyton Meyer's page had 2 different addresses, and with some quick Googling, I found he is no longer a member of the Clear Talent Agency, and I am about to write him so I say the best bet would be using the other address (Innovative Artists).
Hope this helps!

Hi! I sent a letter to Cimorelli using this address:

Cimorelli
PO Box 158868
Nashville, TN 37215
USA

And it was labeled RTS two days later (sent in July 2024). Hope this helps!