Harry Potter Walking Tour London

Hi everyone! My mum is visiting me in London for Christmas this year and I would really like to gift her an activity we can do together. A Harry Potter Walking Tour does seem like a good idea as we are both huge fans of the franchise. But I am a bit worried that it might be a bit boring BECAUSE she is such a well-read fan. So my question would be: have any of you been on a such a tour through London? Can you recommend it? Where abouts did you go? Thanks🫶