Place 2 tablespoons red wine vinegar, 1 teaspoon dried oregano, 1 teaspoon Dijon mustard, 1 teaspoon honey, 1/2 teaspoon kosher salt, and 1/4 teaspoon black pepper in a large bowl. While whisking constantly, slowly pour in 1/4 cup extra-virgin olive oil and whisk until all of the oil is incorporated.
Prepare the following, adding each to the bowl of vinaigrette as you complete it: Halve 1 pint cherry or grape tomatoes. Thinly slice 1/2 medium red onion (about 3/4 cup). Pick the leaves from 1/2 small bunch fresh basil and thinly slice until you have 1/4 cup. Drain and rinse 1 (about 15-ounce) can chickpeas. Drain 1 (12-ounce) jar marinated quartered artichoke hearts (do not rinse).
Toss to coat. Taste and season with more kosher salt and pepper as needed. Serve immediately or refrigerate for at least 30 minutes to allow the flavors to meld.