From the current squad I would put Gray on the wing there. We are not tall upfront and dont need the lofted ball in and I feel we would make a lot more from attacking runs into the box or low crosses. If its high crosses we need then Chillwell come come up more too.
Obviously there are issues with Gray's current level of performance and his seeming inability to release the ball when needed but i feel both of these would be solved quite simply. Gray has always performed better with space infront of him with the ball at his feet in a similar way to Mahrez. Releasing the ball will come with more time on the ball