Easy answer, REI half dome or quarter dome. Half dome is bombproof and the quarter a bit skimpier, but lighter. If you carry treking poles, you could try Nemos 2p a frame tent. It is hybrid single double wall, not free standing, and will have less head room, but is pretty light. If you want to think outside the box and go way light, check out six moons designs. Some of their shelters are actually dual purposed ponchos, so you could save some serious weight.