u/Fragrant_Penalty1093

I have been using my passed down cannon 600d for a long time i only have the kit lenses and am thinking about getting a new lens and am confused what should i go for i mostly do street photography and portrait’s and i am confused that should i go with the canon 50 mm f1.8 or is there anything better and also is there any lens which has a better autofocus then the kit lenses . My budget is only around 200 dollars .