Amazon carries lots of USB-C adapters and adapter cables. However, your query is unclear. DVI and DisplayPort are different things, so "DVI DisplayPort' is a contradiction in terms. DisplayPort connectors come in Mini and full sizes (although it's trivial to adapt between these sizes), while DVI requires a more robust dual-link connection for high-resolution monitors.
You need to figure out whether your monitor takes
- DisplayPort input
- Mini DisplayPort input
- Single-link DVI input (DVI-D with resolutions up to 1920x1200 pixels)
- Dual-link DVI input (DVI-D with resolutions over 1920x1200 pixels)
Once you know what you're trying to connect, the hardware should not be hard to find.