What are some of the most popular donut toppings in America? 
i would say that glazed donutes are probably the most popular
Are there any toppings that sound weird, but actually delicious? 
I have heard sweet potato donuts can be good
Are there any healthier alternative to donuts when I'm craving sweets?
baked donuts, while not 'healthy', are much less unhealthy than fried ones
That sounds delicious, I enjoy baked goods as well. Where could I find baked donuts in shops?
i am not sure, but there are lots of recipes online to make them yourself!
I'll have to look into that. I would have to learn to bake, but it sounds promising. 
yeah, apparently they can be super simple