5e lacks huge spiders, but your game doesn't have to! You can whip up a homebrew for this huge fella, and it works quite well as a Retriever for Pathfinder, which is what inspired the original design. For this version, we went with more of a spindly, long-legged design. Creepy.
These legs are pretty hard to find, but we've slowly been accumulating enough to make a handful of these spiders. Once this first round is gone we have a feeling that they will be pretty hard to restock.