Well, tea makes pretty good tea... In fact, the tea plant is Camellia sinensis. Other plants related to blueberries would be good in acid soil and tolerate some shade--salal, huckleberry, wintergreen are all good. Cranberries, lingonberries...
Blueberries have shallow roots, and don’t like to share root space. The more compost you use the less soil pH matters, and the less likely many plants are to compete.
Acid-loving or will tolerate very acidic soil: blackberry, raspberry, blueberry, cranberry, Alpine strawberry, parsley, potato, sweet potato, carrot, brassicas, corn, cucumber, dill, endive, escarole, garlic, parsley, sweet peppers, hot peppers, winter squash, turnip and rutabaga, peanut, cucumber,
Moderate to mildly acidic or will tolerate acid: cilantro, Japanese bunching onion, peas, beans, radishes, carrots, celery, pumpkins, and tomatoes, rhubarb, eggplant, onions, corn, radicchio, sorrel, basil, dill, lettuces, maybe dandelion, horseradish (digging for deep roots may hurt blueberries), borage,
Currants, apples, grapes, raspberries, strawberries, gooseberries, Cape gooseberries/goldenberries? chestnut, hops, (somewhat invasive roots), groundnut (Apios americana is shallow and harvesting probably won’t cause trouble with blues.
Madrone and manzanita might compete