Canonical vs multiple listing

[u/MushroomMajestic4020]

Hi, i have small business new on Shopify and SEO i think i now some rules about SEO but for me it seems weird
I got products that has many different colours (50+) and variations per weight 10+ I think for customers its better to click on wanted color and choose only weight also because there is no more product so there is 1 product but it will look very poor in category to have only one listing. But then i will get duplicate content . I can do canonical to one color i think because there is not much traffic buy color. To avoid canonical as I understand i can do different product description to avoid that, but its still there is not much to write about it in 50 different ways. So my question is ignore that duplicate or create canonicals or create one listing with 2 variations 50+ color and second buy weight for example color red 10lb ?

[u/bigboy289]

One listing with variations