Here are a few inexpensive, high quality modern EF mount lenses you might want to consider in addition to vintage glass:

• Mitakon 35mm f/2 - $159

• MEKE 85mm F1.8 Full Frame Auto Focus Lens for Canon EOS EF Mount - $170.99 (after coupon)

• Mitakon Zhongyi Creator 135mm f/2.8 Version II for Canon EF Mount - $179

Hope this is helpful!