If you need the software for professional or personal use, consider these official options from Blackmagic Design DaVinci Resolve | Blackmagic Design

Here is why you should avoid "key generators" (keygens) or "cracked" versions: 1. Security Risks

Instead of taking unnecessary risks, consider purchasing a legitimate license for DaVinci Resolve Studio 16. Here are just a few benefits:

DaVinci Resolve has evolved significantly since version 16. Using an old, potentially compromised version limits your creative potential.