Everyonbe has one, but I need a more comfortable place to put it!

I would like to change out (upgrade) the front seats in my 2011 LT for a more supportive (lumbar)pair w/ side panels. Fitment is a problem. Does (has) anyone upgraded their Gen2 front seats and if so, what make/model was successful? Facebook always has GM seats. I just looked at a very nice pair from a Tahoe, but they have power adjustment and manual adjust would serve my needs. Any ideas? Thnx in advance. In the current economy, an Aveo is a standout, albeit, underrated choice and holding their value at resale. Glad to have mine back!