Simply print and use nine M6 nut's and press fit them into place. The nozzles screw into them.
Why nuts? Originally I'd been using a 3d printed threaded version and notice the threads wearing out, some had the nozzles not straight so thought to go down this route.
Original fully printed version.
https://www.printables.com/model/185517-e3d-v6-nozzle-holder-6
The author marked this model as their own original creation.