Based on this product's specifications, here are some alternatives and similar models
Keycap Keychron AT-12 Aluminum Alloy Silver Gold keycap set for mechanical keyboards
Summary description:
Keychron AT-12 keycap set is made from aluminum alloy in a silver and gold finish. Designed for mechanical keyboards, the set provides durable metal keycaps that replace standard caps for a different look and tactile feel. Suitable for users who want a premium metal aesthetic, improved longevity, and a distinct typing experience on compatible mechanical switches.