Which webshop builder to use for a store with many different products

So I'm brand manager for one of the biggest book shop chains in southern Europe.

We are also a book publisher and have a catalogue of over 100.000 different items (mostly books) for sale in all our shops and our webshop. The webshop is not up to date and currently holds around 10.000 different products but we'd like that to change in the future.

We are currently using Magento Commerce and I dislike our webstore and its layout.

Our total webshop lifetime sales are around 15 Mil € with over 200.000 units sold.

I'm lobbying to get a new webstore replacing the old one. I have experience in WooCommerce and Shopify and I'm not sure if these are a good fit for this scale of business and I don't mean the financial volume but rather the wide spectrum of different products.

Thankful for any suggestions!