Codec:
After several tests I found
Xvid being the best in performance-quality ratio (fast to edit around and both good looking).
I got it from here:
https://codecguide.com/download_kl.htm (Mega surely includes Xvid, Basic doesn't, maybe choices between do)
Edit: Only Mega contains Xvid
Editing software:
Not easy to decide but I got this in my hands (actually not really, I didn't try it yet) but it looks promising. It's called
DaVinci Resolve. The big thing about it is that it's free.
https://www.blackmagicdesign.com/produc ... ciresolve/