Note:

The three Brushes I'm currently using in Krita for 90% of the stuff I'm drawing are free.
And if you want to have the rest of them you can throw a bit of change my way ╰(*°▽°*)╯
(But honestly. All you need are the sketching brushes)

I'll update this in the future once I've made some more brushes, but for now this is all I have.