Be careful with the Tree ones. They only make them for certain 22mm cranks. Something about not all 22mm spindles are the same size.
I also doubt there will be much options in a 30+ tooth size in the 22mm splined. Bigger gears are for sure on a come back, but I think they are still racing the 22mm spline drive on popularity/regularity. Hopefully soon though as I am sort of leaning to your same preferences on bigger sprockets in 22mm spline.