This set of geonodes allows you to quickly create chains and other objects consisting of links.
With it, you can adjust all the parameters of the chain:

1. Width
2. Length
3. Size of the links
4. Thickness of the links
5. Distance between them
6. Angle of rotation of the links
7. Subdivision mesh
   

It also allows you to use custom links from your library. This bundle includes a base set of 1 generated chain and 6 custom chains to inspire you to build your own.

Try it and it will forever remain in your collection of permanent tools.