What type of handle / cover do I need

Hi there!

I hope this note finds you well.

I am looking to replace the handles / covers for my window operators. (Which were missing when I bought my house...) It looks like the window operators are from the "Truth" "Entry Gard" line. (There is a stamp on the operator arm, not sure if it is visible in the pic.)

Could you help me figure out what would fit on this? I prefer the look of metal (over painted) if possible. Many thanks!