Not a fan of baked beans with barbecue anyway, but I do like beans. I've done black beans for pig roasts, with yuca con mojo, fried ripe plantains, pineapple salsa, and shrimp and malanga fritters as the starter.
Others: Roasted sweet potatoes mashed with roasted plantains, spicy sautéed kale, mojo for the pork
Fried rice with peas and baby corn, grilled baby bok choy (or sautéed shredded Napa with red bell pepper julienne, soy syrup drizzle
Savory herbed waffles (for under the pork), cabbage/carrot/jícama slaw with lime, smoky cherry sauce
Garlic brown rice with sesame, sautéed green beans with toasted shallot, roasted peach sauce, lavender honey