I use cheap Gopro clones from Amazon from Lightdow:
https://amzn.to/2pK54M2
If filming yourself, I use a suction cup mount similar to this:
https://amzn.to/2GaXGQO
If I film someone else, I stick it on a handle:
https://amzn.to/2pDaAAG
I don't use any video editing software except for Coach's Eye when i want to make comments.