Dont be too scared. Intel cpu will throttle clock speed and worst case shut itself down if overheat .
80+c is still ok actually. I ran my old i5 2500k at tht temp for so many years and its still alive. If you dont oc at all, dont waste money buy 3rd party cooler. No benefit at all other than feel good factor. Intel stock cooler is quiet and able to cool the motherboard vrm too unlike tower coolers