Laser engraver for engraving my environment renderings on metal?

Hi, Learn Archivz family! I've been reading the content here on this forum for quite a while & there are so many talented & creative individuals here. It seems the ideal place for advice. I am looking for a metal engraver that has the capability of working effectively on highly metallic stuff. And also it must be absolutely safe. Please help me out this is for a university project!