I know a few I CAN live without. I know this is about a crash/ride and I'll probably get alot of "you dumbass this is about a crash/ride you worthless trash" but w/e. Save up and get separate ride and separate crash. Someday you might thank me. Just my opinion
I've got a 19" K Med Thin crash that works great as a ride. I have a chain draped over it and it has dried it out beautifully. I use it primarily as a Left Side Ride for jazz gigs right now. The crash is huge.
1. Sabian makes a beautiful crash/ride cymbal that sounds good in both jobs. The 18" HH Crash Ride has great definition as a ride, and a beautiful wash and shimmer as a crash.
2. Try out some thinner ride and crash cymbals. You'd be surprised at the number of them that can perform both functions, but that aren't labeled to be such. The Zildjian K Custom Dark Ride, for example, is a great ride but also crashes nicely.