Originally Posted by
zacster
I don't know of any road shifters that could shift a Dynasys derailleur either.
These:
https://www.gevenalle.com/product/gx/
or you can use a adapter that adjusts the pull like this:
https://lindarets.com/tanpan/
Cheapest is way is just to buy a 9-speed MTB derailleur though!