I am happy to share with all of you one of my actions.
It is called Duo Red-Duotone Photoshop Action and it can be download for free at this link: http://cgdesignstudios.com/freebie-duo-red-duotone-photoshop-action/
You can check my main action which include 120 duotone presets: https://graphicriver.net/item/120-duotone-photoshop-actions/15336341
