Ahead of Cinco de Mayo, his picks span Encinitas, Boston, San Francisco, Key West and Nashville, featuring Haggo's Organic Taco, Lone Star Taco Bar, Señor Sisig, Garbo's Grill and Mas Tacos Por Favor.
The selections highlight regional variety, from California fish tacos and Boston barbacoa to Filipino-American sisig and Korean-influenced tacos in Florida.
Fieri, host of Diners, Drive-Ins and Dives, said the roundup reflects years of travelling the country to find standout local food.
What does Fieri's list of fusion tacos reveal about the evolution of American food culture?
With a 23% failure rate, is Guy Fieri's TV feature a blessing or a curse for small restaurants?
How does a host who dislikes eggs and liver become America's most trusted guide to authentic local eats?