When I was planning for a big project, I realised an easy way to be able to cross reference and compare different shaders was to create a showcase of sorts to use for future projects and be able to go back and check Shaders' settings.

Originally made in Blender 3.3

(re)rendered in Blender 4.3.2

1st render unlabeled at 500 samples,

2nd render with added numbers for info below

Given how various creators would use different setups in terms of world settings, etc and some might use Eevee instead, I used Cycles.

1. KennyPhases; Chrome Shader/Material in Blender

2. RaiarShi Aachariee; Perfect Chrome Ball

3. Kavuma 3D; Chrome Shader in Blender

4. ARK's Empire; How to make a chrome or Silver material in Blender 2.82

5. Nazarly Dudnik; Color Chrome Material in Blender 3.2

6. toericht; Chrome/Metal Material - Blender Tutorial

7. toericht; Iridescent Materials in Blender

8. MIJAIL CALLER; How to make an Iridescent Texture in Blender

9. elvogto; Crispy Chrome Material

10. REPIX MEDIA; Brushed Metal (Chrome)

11. Erik Hillinger 3D; How to create a realistic chrome shader in Blender

12. Blender Made Easy; Creating Realistic Procedural Brushed Metal

13. Ducky 3D; Procedural Dented Metal Shader

14. Ducky 3D; Weathered Gold

15. Kaizen Tutorials; Realistic Metal Material

16. 5 minutes Blender; Create Realistic Steel

17. Ducky 3D; rust

18. Various Artz; Bronze

19. Various Artz; Metal Material

20. Ryan King Art; Scratched Metal

21. Ryan King Art; Gold Nugget

22. Ryan King Art; Dirty Metal

23. smeaf; Prodecural Metal Material

24. just 3D Things; Procedural Copper

25. Ryan King Art; Copper

26. chris P; Copper Material

27. blenderbitesize; Distressed Copper

28. tutsbykai; Easy Rust/Copper

29. sam bowman; Procedural Copper

30. sam bowman; Chrome

31. Ducky 3D; Lava

32. Ducky 3D, same one used in original Cube - 1 project