THIS IS ALL SAID ASSUMING YOU DONT WANT A OFF BRAND BIKE!!!!!
Based on your height, youd want a bike like the ones listed here.. ima just name em off. TTR125, XR100, CRF100F, DRZ125, KLX140, KLX110. Nobody makes a 200cc that you can ride, Only KTM and Suzuki make a 200cc bike, KTM's is a 2 stroke, which is for somebody with at least 3 years of experience with big bikes. Suzuki's is a road legal bike.. and it would be to tall for you, and so would the KTM. and a CRF150F and the CRF150R (CRF150R = VERY EXPENSIVE) are the only 150cc 4 stroke's on the market. and the CRF150's are a tad tall for you, but not by a whole lot, you could get one if you really wanted to and tehn you could grow into it.
HOPE i HELPED!!