Pretty Princess for the day! (Patreon)

I'm using  Lazy Nezumi Pro a lot lately and it's been SUPER helpful! If you're strugging on how to draw perspective lines I highly suggest giving this program a try. There is a smaller learning period for this but once it clicks you have a unique set of tools at your hands. 

They also have a 30 free starter!

https://lazynezumi.com/