Shopify Combined Listings

I thought it would be better than variants, but its the same issues. We have tens of thousands of SKUs, combining them into single listings is what we want to achieve, however many marketplaces where we sell cannot deal with combined listings, so we need individual product data fed to each app. Just like variants, this only sends the 'parent' description and other data, resulting in us needing addtional steps to achieve what we need to