Green Goddess Crab Tapas

Name: Green Goddess Crab Tapas
Ingredients: 1/4 cup mayonnaise; 1/4 cup sour cream; 1/2 cup fresh parsley leaves; 3 tablespoons chopped fresh chives; 2 tablespoons chopped fresh tarragon; 2 lemons, juice of; Zest of 1 lemon; 1 avocado, halved, pitted and peeled; 1 baguette, sliced on the bias 1/4-inch thick; Extra-virgin olive oil, for drizzling; Kosher salt and freshly ground black pepper; 1 pound Dungeness crabmeat, picked for shells (jumbo lump can be substituted); Smoked paprika, for finishing; Sea salt, for finishing