What tools or services have you used for hiring Corp-to-Corp contractors? Share your experience!

1️⃣ Have you or your company ever hired developers or QA contractors under a corp-to-corp arrangement? 2️⃣ What tools, platforms, or services did you use to facilitate this type of hiring? (Pros) 3️⃣ What challenges did you encounter during the process? (Cons) I'm specifically interested in corp-to-corp hiring experiences, not freelance or individual contracting. Your insights would be greatly appreciated! 🙌