ideas needed!!!

So my man and I have been together for 2 years now, living together for 7months now. sex is great! but I feel like I want to try new things. We usually do the same 3 positions whenever we have sex. missionary (being HIS fav) me riding him and doggy style. I want to try new positions but idk how to tell him or bring up what position I want to try. also, I like it rough 🙄 like rough 😂 I sometimes wish he'd pull my hair or put his hand around my neck but I also don't know how to tell him that ☹ help!!!