Do any of you still straighten your hair? What do you use? Do you flat iron or use something else?

I can't get 2nd day hair without re-wetting and I just don't have the time to do all of that. So in this cooler, drier weather, I've been doing roller sets. My hair stays reasonable for several days but it looks kind of old fashioned. I was wondering if any of you straighten your hair and whether you've had damage?

Thanks for any input!
2/c-3a Coarse hair med. density.
Protein sensitive but can use occasionally
Highly porous. Color over grey.
I love all the Curl Junkie products and use CJ CCCL as my main styler. Still hoping for 2nd day hair....
Every day is a gift