Yes, both 3ds Max and SelfCAD offer a Free Trial.
3ds Max is designed for Large Enterprises, Medium Business and Small Business.
SelfCAD is designed for Individuals, Large Enterprises, Medium Business and Small Business.
Pricing for 3ds Max Starts at $215/Month whereas for SelfCAD Starts at $11.99/Month when Billed Yearly.
Some top alternatives to 3ds Max includes 3D Slash, SelfCAD, Clara.io, SketchUp, Maya, Cinema 4D, Modo, Revit LT and Lumion.
Some top alternatives to SelfCAD includes 3D Slash, Clara.io, SketchUp, 3ds Max, ZBrush, formZ, Onshape, BricsCAD and Autodesk Design Review.