Tryin to find a sissy bar for my dyna and dont know where to look or what all i need.

I'm Lookin for the taller sissy bars some of u guys have. The ones without the pads... i have a sissy bar mounting bracket cause the P.O. had a 2up seat with back rest. Not sure if that can be used or if i need something else..

Any help on where to look and what all i need would be appreciated.. thanks guys.