You can also get taller tires. I have 215 65 16s which are about 27 in tall. My stock tires are about 25 in tall, and by tall I mean diameter. So you end up gaining an inch just by switching tires. I have a lift that is 2in in front and 2 1/2in the rear, so I've roughly gained about 3in in height. I'm just a little bit under a Crosstrek when you look side by side.From what Anderson said to me when I inquired last winter, he indicated that their predetermined sizing is the safest option for your CV joints. Unfortunately, I wanted to get mine to 3" (WV mountain roads out here are quite neglected in the unpopular areas + crossing low-water creeks). I had noticed that some eBay sellers sell some crappy plasticy-type of material they claim is useful for adding a little height, though they are only similar stacked ones in design, much like Anderson. The eBay ones don't necessarily account for the angles needed for proper wheel alignment.
One other route would try those fancy over-priced Eibach spring kits.