Best flat iron/hair straightener for fine and thin hair?

Yes, I know it's not great to use a flat iron on this hair type. The problem is, I truly hate how my hair looks without it - not straight, not curly just weird frizzy bends and clowlicks. Even after blowdrying straight. I try to just use the flat iron for a quick pass through of the ends so it looks smooth and even. I used to have a T3 One Pass that I absolutely loved, then I bought a newer version and I didn't like it as much. I recenly had a babyliss and it was also fine but not amazing. Looking for something new, no more than 1" and not wide and bulky. I also have no need for the dual straightening/curling combo as I just need to straighten. Have you found anything that works for fine, thin hair without a lot of damage?