Add some flavour:
Try adding fresh or dried herbs or spices such as basil, parsley, chives, cilantro, ginger, garlic, etc.
Spice it up:
Add chili paste or chili pepper for spicy variation.
Add nutritional yeast for a cheesy flavor.
Or why not try a sweet variation to the sour cream. I love lemon cashew cream with fresh berries.
Add bell pepper, cucumber, carrots for different flavours.