What straightener do you recommend?

i have thick curly long brown hair and my mum got me this thin straightner with thin plates and it takes about 45 mins to strsaightne my hair with that. My aunty has a rili thick plates straightner which takes 20 mins to straightne my hair so what straightne do you recommend for my ahir? My aunties one is to expensive lke 400. looking for soemthign 80- 150 ( and a good brand lke vs soon)