any of these should be good. btw, I think one parent company owns just about all the brands of hitches these days. If you were trying to tow something more than bikes, I'd say you'd probably wish you had the full tow pkg with tranny and oil cooler upgrades, etc.
2006 Toyota Highlander hitch search by etrailer.com (800)298-8924
2006 Toyota Highlander hitch search by etrailer.com (800)298-8924