I built an NFT sniper bot that checks the market every 5 seconds to see if there are any sales for whatever specific NFT you want to buy.
All you need to do is enter the ID of the NFT, and the price you want to pay for it. Then run the script and it does everything else for you.
You'll need to download some things and type some commands into terminal to set it up. All the info is in my article, I'll also be making a video tutorial tomorrow.