Electrical and Computer Engineering

aloha y'all!

i am looking for a good, solid, well written book on digital signal processing. i passed a two-semester course for my bachelors and am well acquainted with the basics and theory (i should, at least) and am now looking for a resource to look up specific stuff. i've looked into the topic and there is a plethora of books, many of them specific to some application(s), some field, some technology and/or language implementation and many of them not that well written (e.g. books consisting of single papers written by different authors).

ideal would be a technology-agnostic textbook including exercises that allows to dive into the various depths of the field at will.

what is your DSP "bible", reference book, go-to resource? any and all pointers are welcome, i'll definitifely look 'em up!