What is found at a continental crust-continental crust convergent boundary?
Usually mountain ranges form or other disturbed belts..
When continental crust encounters continental crust they both have densities that are relatively light (compared to basaltic crust) and so they tend not to get subducted down into the mantel. Instead, they tend to form mountain ranges.
The Himalayan Mountains are the classic recent example of two pieces of continental crust that collided about 10 million years ago. Volcanos are not usually associated with this kind of collision as there is no subduction slab of crust to remelt and form less dense magma.
The Alps in Europe are another example of this kind of collision.