26mm QuickFit strap with Ti hardware for Ti Fenix 8

Not exactly sure what you are asking for, but if it is a Titanium bracelet, there is one available : Vented Titanium Bracelet

If you want a Silicone/Nylon/Leather strap with a silver buckle, then you would have to purchase the black buckle version of the Garmin strap you like, and then purchase an after market silver buckle (available from the usual Chinese suppliers) to replace the black buckle.

Or, you could purchase any one of many aftermarket straps which come with a silver buckle, like this one on Amazon: 26mm Upgraded Composite Silicone Rubber Replacement Watch Band with Stainless Steel Buckle for Garmin Fenix 8/6/7

HTH