Hi Becky, Begin by ascessing your limitations. What is the depth of the window and where are the mechanisms for locking and and opening/closing the window. Will the window still function properly with and inside mount treatment? Different products will have varying depth requirements. Next, ask what purpose the product will serve. You mentioned privacy, but is blackout needed? Both roller and roman shades offer blackout liners, but is there a need for energy efficiency? Are the windows double pane? Next, what is your budget? Fabric is always going to be a higher price point. If you send me a photo, I’d be happy to give you my feedback.
Q
Roller shades
Q