Welcome to BYC! It's great to have you.
If you're open to bantams, Silkies, Bantam Cochins, and Seramas are all incredibly friendly breeds bred mostly for pet and show uses. For standard birds, I love Brahmas, Cochins, and Faverolles. For birds who are quite good as both pets and layers, I enjoy Black Sex Links, New Hampshires, Delawares, and Orpingtons. Honorably mention to the Shamo, for although they are the friendliest and most intelligent breed I have ever worked with, they are rare and often expensive. Well worth it, though.