I am grabbed by something different, or something familiar. Read prologues but mostly hate them. Particularly hate it when the author quotes a scene halfway through the book at the beginning. I don't mind books that go back and forth timewise, but just quoting an excerpt seems to shout at me "at least there is one interesting page in this book"
To me it is not about the first page or chapter despite my strong feelings but whether I want to read more books by the author regardless of genre. Still I usually plod along fifty or so pages before deciding.
I would recommend
Robert B. Tanebaum - Butch karp series.
Liz Williams - Inspector Chen
Tee Morris - Phoenix Rising
F. E. Higgins - Tales from the Sinister City series
Simon R. Green - Nightside
Glen cook - Garret P. I.
Robert B. parker, Andrew vachss, Michael Connelly, Elmore Leonard, Tim Dorsey and the list could go on and on and on.
Might be more selective if you mentioned your favorite books
Helen