first off - what are your intended target fish and what size rivers will you be fishing.
I have fished both spey and switch and no longer own a switch rod. the switch was OK for tossing tips and small to medium sized flies but it really excelled with two handed overhead casting (like you would do from a beach) and single handing it was near impossible unless you have Hulk Hogans arms LOL
I know Amundson makes a 6wt 11' true spey rod if you want something short but will still cast properly like a spey. other companies make 11'6" true spey rods either but you will have to search around to find out who carries them. I went with a 12'6" 7/8wt (salmon/steelhead) and im hoping to grab myself another spey in a lighter weight class for smaller salmon and trout. There is a couple companies out there that offer spey rods right down to a 2wt now
I spent years single handing and since i grabbed the spey i will never single hand for river dwelling fish again. Life is so much easier not wasting all that time false casting and wearing out your shoulder