Garbanzo Aguachile Verde

Name: Garbanzo Aguachile Verde
Ingredients: 1 cup freshly squeezed lime juice (from 8 to 12 limes); 1 cup cilantro leaves and tender stems (about ½ bunch), plus more for serving; 1/4 medium white onion, thickly sliced; 1 small or medium serrano, halved (and optionally deseeded for less heat); 3 garlic cloves, peeled; 1 teaspoon soy sauce; 1 tablespoon extra-virgin olive oil, plus more for serving; 1/2 teaspoon white miso; 2 (15-ounce) cans garbanzo beans (aka chickpeas), drained and rinsed; 1/2 English cucumber; 1/2 medium red onion; Saltines or tostadas, vegan mayo, and/or sliced avocado, for serving