You’ll occasionally get bundles before a new game or dlc releases. Those are generally pretty filled with content if you don’t already own some or most of it. For example Cities Skylines had a bundle with the first game and most of the dlc before 2 launched. It’s worth it to keep an eye on the homepage to pick up deals like that
From the top of my head there’s Inquisitor Martyr, Space Marine 1 and soon 2, Darktide and Boltgun that are not tactical/strategy. Ever since DoW3 I believe most W40K games haven’t really been in that genre.