For my alaia outline I was looking for a free software solution instead of using some commercial DTP software like InDesign.
The one I used for my alaia is AkuShaper which I came across while reading some articles on Swaylocks. It's free (there's a commercial pro version, too), java based and really easy to learn. As I just needed it for the outline, I didn't get too much into the two other views needed for real 3D modelling.
The other one I came across is BoardCAD. Also free, also Java based. The screenshots look pretty similar to AkuShaper, however I didn't install it as it seems AkuShaper is the first choice.