I need help

So yesterday me any my hubby were talking about our sex life we are very open about it all the time and he asked me to "Rate" him and of course I said 10 (The only men I been with) and well I asked the same thing and he said "7-8 I love having sex with you but I'm just bored of the same positions" ladies what can I do to change this ? We always do missionary, doggy style , cowgirl, and well oral