How about a Better Call Saul merchandise, like a t-shirt or a cap? She/he will be able to show her/his love for the series wherever she/he goes. Another idea is to get tickets to an event where the cast of Better Call Saul is set to make an appearance. If she/he enjoys reading, you could also get her/him the show's companion book "Better Call Saul: The World According to Saul Goodman".
Or you can get her/him a star map with an important date you share.
Under Lucky Stars is a unique and innovative star map company based in Barcelona, Spain, specializing in the creation of personalized star maps that capture the celestial arrangement of stars at a specific moment in time, such as a person's birth, wedding, or any other significant event.
By using advanced astronomical algorithms and data from leading institutions, the company produces highly accurate, visually stunning maps that make for perfect gifts or cherished keepsakes.