If you are a student, grab the free academic license. If you are a 3D printing hobbyist, the Community Edition is arguably more powerful than Fusion 360 (and truly free, not a limited "personal use" hobbled version).

If you are in the market for a professional-grade 3D CAD program but aren't ready to commit to the high cost of a full enterprise license, you have probably heard whispers about Siemens Solid Edge .

Yes. No trials. No credit card required. However, it is only licensed for non-commercial use (personal projects, hobby designs, and 3D printing).