I only started shooting handguns around 2 years ago and I'm still far from experienced in the matter, but I found the videos by Paul Harrell on the topic very helpful.
He explains grip, stance and all the other essentials well and in a no-nonsense manner with a little bit of dry humour sprinkled in.
It even made learning on a .44 Mag Colt Anaconda (had no other gun to train with at the time) a fun and relatively simple affair.
Here, I put them in a YouTube playlist for you:
https://www.youtube.com/watch?v=lCR...MfWpad5FbrzzQg7REx0&index=2&t=0s

They don't make 'em like they used to

Don't tread on me

Nothing runs like a Deere