Have you tried a water bottle vest? They are vests that you can attach 2 liter bottles of frozen water which will 1 way them down which causes more work to pull (which gives the environment of pulling a sled and items which is what they are bred for) while running, walking, biking, hiking whatever you like to do and 2 the ice will cool them down while doing so. Also "exercise" isn't always the only thing to wear out a husky. They are job dogs so extreme busy bodies. They need something to keep their brain and body active. You can do this as training them new tricks or service dog training etc. Good luck!
Have you tried a slip lead around the head right nehind the ears?
Training collar
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