@kv I based my setup on a video similar to this one
I use:
2x Dayton Audio BST-1 Transducers. I think these ran me about AU$90 each, and two is probably overkill.
Nobsound Mini 50wx2 USB Amplifier. Runs about AU$50 on amazon.
I use my Falcon Shaker application which you can find for free on this forum by searching for haptics, however I believe Andre has a good software solution if it’s available for sale, and there are a couple of others that are pretty low cost and probably better than whatever it was that I cobbled together with the help of AI.
Other than that, you just need some cables to plug everything in and somewhere to mount everything securely.
Nothing in this post is endorsement or advertisement, just what works for me.
You will never go back.