My laptop's webcam is busted and recoding from phone then importing it to laptop while editing is a hassle, please suggest a webcam i can use that provides agood quality result for making my courses. Note that I am in Pakistan and $1 = 150 PKR so my range is small however i am option to your suggestions.
The Logitech C920 is a standard choice. They're hard to find right now though, everyone is buying them up for doing video conferencing while they work at home during the Coronavirus crisis. Maybe availability is better in Pakistan.
If you want to add a few bucks, I'd spend it on a lighting kit instead of a more expensive webcam. Getting yourself lit properly will make a much bigger difference in the quality of the image you get.