I'd suggest these two from Dr. Richard Nongard:
https://www.amazon.com/SEVEN-Most-EFFECTIVE-Methods-SELF-HYPNOSIS-ebook/dp/B0813VZDTZ/ref=sr_1_1?dchild=1&keywords=richard+nongard&qid=1601299088&sr=8-1
https://www.amazon.com/Self-Hypnosis-Solution-Step-Step-Profound-ebook/dp/B08FXR1YHG/ref=sr_1_3?dchild=1&keywords=richard+nongard&qid=1601299088&sr=8-3