Buying obd II reader

[patsilvia]

hi guys, my car is s14 96 stock KA with 101,000 mileage.
Rigth now the check engine light is on..that's sad.
I plan to buy the obd II reader. after check around it could cost
from 20$ to 200+.

I would like to know which one is right for me.
I don't run a mechanic shop; just a try-to-be DIY dude.
I am not a cheap dude, but I don't want
to pay for what I'm not gonna use too.

Basically, I need to read the obd II code error, reset it.
Not sure if any features of obd II reader is good to have.

what are the basic features that when you buy the reader
it has to be there otherwise you won't buy it...

Thanks you in advance.
Appreciate your time to read and possibly reply
Pat