While the 85/1.8 is a great lens,
Ping G25 Driver Price, I’d suggest something shorter for a first prime,
Titleist 913H Hybrid Price, 85mm is quite a tight focal length on your camera. Which means one of the fifties. Personally I don’t consider the 50/1.4 worth the price premium over the 1.8 version; I’ve had one but sold it and later got the 1.8..