It'd be interesting if he crossed paths with Diana Prince's one-time companion and mentor I-Ching as one of his teachers.

When you realize that Bruce made his vow at 8 years old in 1958 and began learning his skills from that time on until (and even after as documented in some flashbacks when he was in costume) becoming the Batman in late 1970, he must’ve had many teachers over those 12 years. I also suspect that while Bruce was seeking out experts to teach him skills he wanted to learn, he was also very diligent about writing down every skill he thought he might need.

I have often thought that Bruce must have missed a lot of school and was one of those kids that rarely studied for an exam but still got A’s because he already learned all about it on his own. His teachers probably found him frustrating, because despite so many absences and little study he still did better than most others in the class. Bruce probably read and basically memorized each textbook at the beginning of each semester and never bothered cracking them open again the rest of the year.