Lighthouse

I'm currently using square space as my website platform, but using Shopify as my e-commerce/POS tool. I've been able to successfully plug the Shopify buy button into my pages, but I'd like to also incorporate dynamic filters. Currently the user must click on an item to see if it's in stock in their size. I'd rather they be able to select ex. "size Large" as a filter, so they only see what fits them. Is there a way to apply a filtering/sorting tool to a block with a Shopify buy button? I'm using a Shopify "collection" if that makes any difference.