It doesn't really matter too much as far as brand, just size and where you want your powerband/peak boost at. In general terms the larger the turbo the more power output, but at a higher rpm which would also increase lag.

I can't imagine something larger than a T3 or T3/T4 (approx. a K04?) hybrid being all that great for a 1.8L daily driver, but I would talk to CAAN or Kyle about it. I'm not really that big on turbos.