Straightener For Coarse Thick Hair (short hair)?

well i have short, thick and coarse hair. its about an inch or two above my shoulders. My hair doesn't take straightening well. it gets frizzy and dry and splits and so i just stopped doing it. But my hair is wavey in all the wrong places so i just pull it back. Now that causes stress damage to my ends to theres just no win situation. i cant braid cuz its too short and i have several layers. so what straightener that is cheap(er) won't hurt my hair but will give me oober pin straight hair? please and muchos gracias.