The factory Silverado mirrors won’t fit the sail pieces where it attached to the door are different. Your options are aftermarket tow mirrors, an aftermarket mirror that closely mimics the regular truck mirrors and factory Escalade mirrors.
If a tow mirror isn’t needed, my recommendation hands down is the Escalade mirrors. I love them on my Yukon. The larger mirror size is perfect and looks appropriate to the vehicle. It will be plug and play since you currently have DL3 mirrors. Note that some do come with a camera that won’t be active.