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