I was going to give the
Vallejo True Metalics as mentioned by Wilbur a go, those all come with a shade, base and highlight in each range. Generally I use either Vallejo Model Air Steel (71.065) or Vallejo Mecha Dark Steel (69.065) as both (in particular the airbrush paint) flow very nicely (I use them with a brush). I also found the Vallejo Metal Colour Dark Aluminium (77.703) to be nice - the silvers in that range seem to work with a brush okay, but the golds were rubbish unless sprayed, just too thin.
As to how they compare to Lead Beltcher. The Mecha is a bit more of a blue metal, LB seems to be a bit more brown. The Model Air Steel is much lighter.
Not a very good snap, but alongside Vallejo Game Color Chainmail (old formulation):
View attachment 19415
As I understand it the newer Game Color formulations are much better metallics than the old - one reason I took someone's advice and tried the Mecha and Model Air ones.