Hi! You could certainly try date paste. But because it is thicker than honey or maple syrup you may have to thin it with water to get it to blend. Just be careful because too much water runs the risk of making it runny.
If you feel like it’s too sweet, reduce the amount of honey or maple syrup you use. You could add something like raisins or chopped dates to give it a different kind of sweetness. If you need more stickiness (if you are rolling this into balls), add water by the teaspoon and let it soak into the oats.
Let me know how it turns out!