I really like The Book of Jewish Food by Claudia Rosen. She did a huge amount of research and the book is half cookbook, half history textbook. Beautifully written too.
[Claudia Roden's Book of Jewish Food](https://www.amazon.com/Book-Jewish-Food-Odyssey-Samarkand/dp/0394532589/ref=sr_1_4?crid=3CVYIXPC3V0L7&keywords=jewish+cooking+claudia+roden&qid=1654267624&sprefix=jewish+cooking+claudia+roden%2Caps%2C68&sr=8-4) is probably something you should have. It has both Ashki and Sephardi sections, but Sephardi section is much larger - probably a mix of her being Sephardi and Sephardi cooking being more culturally broad.
The book above is by Claudia Roden. It's Amazing. It takes a much more anthropological view of Jewish food. It's equal parts cook book and cultural history. even from jews in china or india. amazing
This one is collected from one family. it's great. much more practical as all these recipes are actually used by people in the family. Each one has a story about each dish.