BTC 38 is pretty decent option too and judging by my experience with them they have one of the best supports. Plus they had pretty every scrypt chacha coin at one point.
I have tried contacting BTC38 in the past without any luck. If anyone gets a response, please post it in here!
The best answer is a YAC-only exchange. Again, I think shapeshift.io is possible with enough inquiries. I wonder if BTER stopped allowing deposits when the YAC network was having its issues. It might be good to assure them it is back to normal...