Deciding on shocks

Ok so first off let me apologize if there's other posts on this subject I couldn't find any. I wanted to know where I could find shocks with the resevoirs that would fit on a 6 inch sus lift. I've been looking around n alot of them say they only provide for 3 inch max. Also I'm curious to know if they make coils for the front that would fit. I want to swap out the struts n replace them with coils for a better ride but as always I've been told 3 inch max. Any info on where I could find these parts would be greatly appreciated. Also what brand would u recommend right Now I'm looking for fox since bilsteins n king only makes for the 3