>>10727067There's been a lot of intercessors, so make sure to ask around on which specific one to get, because some can get as cheap as $17, while others can have the really stiff hands that are very hard to hold/swap accessories with, and are relatively the worst because of the hard hands.
The hiya aliens are kinda small, and therefore not very threatening to astartes, and can also get kinda pricey for meh figures. The McFarlane genestealer is like $20 tops, and can easily work as a broodlord/patriarch.
Here's a pic of a hiya predator next to a phobos marine. Not the worst scaling, but aesthetically, the "predator" hardly seems like such. Maybe try some halo brutes?