Forge World lets you get the collections you want in a single click with their new bundle sets. They’ve 17 of them, total. There’s collections for if you want their Horus Heresy characters with a squad with them, or a group of tanks, or a group of dreadnaughts. Check them out over in their webshop.
From the announcement:
Greetings all Forge World Collectors. We’ve put together seventeen fantastic new product bundles from across the Forge World model range. To see them, just click on the link above or click here.