Your job is:
1. Buy a magento2 crosselling product slider.
2. Add the crosselling slider (tabbed in "ADDITIONAL PRODUCTS", "SAME BRAND", "SIMILAR"
3. Group the 3 crossselling slider to 3 tabs:
ADDITIONAL PRODUCTS (added by admin)
SAME BRAND (automaticly added by brand attribute)
SIMILAR (added by admin)
See also attached image or check this website to see the product crosselling slider in action:
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