When I'm trying to find the best restaurants in a city, I always go on Eater. They have yet to disappoint. I like to check out their "Essential Restaurants in (insert city here)" lists. Each restaurant is pinned on a map and you're given a description, photo, address, and link to their website.
I love the essentials list because they feature various cuisines at all different price levels, and they're not afraid to put the mom and pop, hole in wall places on there. Plus they're constantly updating their lists, so if you're like me and often revisit cities, check the list before you go to see if any good new places have opened up.
Check out The 38 Essential Restaurants in Detroit, Winter 2018
Tip: Try finding a cluster of restaurants and explore that area of town for the day. You'll save time and money on travel, plus you'll get to truly experience a neighborhood.