I have the thickest hair i swear on it.....?

Hey I need some help badly, i had a conair flat iron that sucked and now is broken i think it is time for me to get a real flat iron one that will flat iron my thick hair to pin sraight all day what kind should i get i had looked at the chi turbo but i saw a few bad reviews and is not sure to buy that one so i dont know what to do and i really really new a new one what should i do if you can link the flat iron u think is best for me if u need anymore infor just email me thank you so much for taking the time to help me out