I've recently produced my first silkscreen image, it's a simple image of a women's face in black ink, screened over a screening of pink ink on the traditional white paper.I had some 24" by 36" pieces of paper that I bought at the dollar store, really cool neon colors that we printed onto for fun at the end of the session. Those turned out so great, I'd like to do
another run with some quality coloured paper, is that something LEGION paper sells?

Although we don't have those bright neon color papers that you used, we do offer a wide range of high-quality colors in the Colorplan and Lessebo families of paper that many artists use for silkscreen.

https://legionpaper.com/colorplan/
https://legionpaper.com/lessebo


Another option is to silkscreen on the reflective metallic papers from Mirri.
https://legionpaper.com/mirri/

On each paper product page is a where to buy button listing those stocking resellers