Here is the brand our LQS recommends. I have a few colors and the numbers match up. It is a larger cone so comes off the spool easily using a thread stand.
https://www.allbrands.com/products/5...embroidery-thr
Another pretty thread to consider is WonderFil Hologram. It is a small spool. I've experienced a little breakage using it sometimes which could be the needle type/size.
BTW: Floriani has metallic thread too. I haven't used it though.