What is the most convenient and effective video editor you've been using?
DaVinci Resolve is my go-to recommendation for great free editing software. Premiere Pro is what I have the most experience with, but the subscription is quite pricey. DaVinci gives you the best offering for new editors looking to learn the ropes
I prefer working via https://www.movavi.com/ since it's pretty easy to use and has all the necessary tools. You can try it as well.