Libertinus Serif is my current favorite. I generally like most garamond-likes for most books, but will dabble in a sans if the book is suitably scifi. Older favorites of mine are Adobe Caslon Pro and Adobe Devanagari. Baumschrift is a fantastic clean sans font but honestly it shines best on larger sizes for headers rather than prose. If we are doing monospace I love IBM Plex Mono in the light variety.