Start with high-confidence literary interviews books, then narrow by subgenre or adjacent topics.
Latin American Writers at Work
Paris Review, George Plimpton
Interviews From the Edge
Mark Yakich, John Biguenet
Hope Dies Last
Studs Terkel
Ernest Hemingway: the Last Interview
Ernest Hemingway
Conversations With Rilke
Maurice Betz, Will Stone
Conversations With Kazuo Ishiguro
Brian W. Shaffer, Cynthia F. Wong
Portrait of an Artist
Hugo Huerta Marin
Ursula K. Le Guin: Conversations on Writing
Ursula K. Le Guin, David Naimon