Start with high-confidence food photography books, then narrow by subgenre or adjacent topics.
Texas BBQ
Veronica Meewes
Feed the Planet
George Steinmetz, Michael Pollan
From a Persian Kitchen
Atoosa Sepehr
Texas BBQ, Small Town to Downtown
Wyatt McSpadden
Symmetrybreakfast
Michael Zee
That Photo Makes Me Hungry
Andrew Scrivani