These days you can find it for next to nothing; it's a multi-track recording program sort of like a basic Pro Tools setup.
you can record everything into a single track, or individually into as many tracks as you like and then mix together for a master track.
There is a bit of a learning curve if you're not familiar with recording programs, but not terrible.
Pick up a 2 mic channel Behringer mixer, stereo output, for about $60. This plugs directly into your laptop.
One or two decent mics and you're all set. I would highly recommend a Shure SM-58. Great mic and not expensive.
Good luck-
Agree with Behringer. A great resource on that:
The Amazing Capacity and Limitation of the X32 with Drew Brashler
https://www.sounddesignlive.com/capacity-and-limitation-behringer-x32-drew-brashler/