which is the best way to permenantly straighten hair? and how maintain the hair after straightening
I don't think u can permanently straighten your hair. No matter which technique you use, your hair will always grow back in to its natural texture.A lot of people who want to straighten their hair do keratin treatments. There are articles about that technique on this site so you can search it up. I wouldn't use that on my head though because they all have formaldehyde.
Sorry, I know this isn't helpful but embrace your curls! Love your hair and yourself as is!