The Daewoo Leganza / Isuzu Amigo 2.2L is the largest I've heard of that drops in. I haven't heard of anyone actually doing this swap though.

The Suzuki Forenza 2.0L has been done before and apparently drops in with a few changes.

More info on what is available can be found in my engine rebuild thread here. Check the first 5 pages or so.
http://www.aveoforum.com/forum/f103/...epaired-10191/

Other engines will fit, but will require a lot more work.