Combine chipotle peppers, adobo sauce, lime juice, garlic, olive oil, honey, and cumin in a bowl. Mix well to create the marinade.
Place the steak in a large zip-top bag and pour in the marinade. Massage the marinade into the meat, then seal and refrigerate for 2-4 hours (don't exceed 8 hours, as the lime juice can start to break down the meat).
Remove the steak from the refrigerator 30 minutes before cooking to bring it to room temperature.
Heat your grill or cast-iron skillet to high heat. Remove the steak from the marinade and pat dry with paper towels.
Cook the steak for 4-5 minutes per side for medium-rare, or adjust to your preferred doneness.
Let the meat rest for 10 minutes before slicing against the grain into thin strips.
While the meat rests, warm your tortillas on a griddle or in the microwave.
Assemble the tacos by filling each tortilla with steak strips and topping with cilantro, red onion, avocado slices, and cotija cheese. Serve with lime wedges.