I know you are probably looking for someone to do it for you, and nothing wrong with that, but let me share a REALLY useful YouTube channel I have found.
https://www.youtube.com/channel/UCUi...sMLhI3A/videos
It basically gives you 1 / 2 min videos that are straight forward and to the point, with no faffing about. The videos cover nearly EVERY aspect of 'Stuff you might wanna do' like adding music, or doing a voiceover or adding text or whatever, for about 5 or 6 different programs.
I use DaVinci Resolve, personally, which is also free, and if I need to know how to do anything in particular like slow motion or something, this is where I go first.
