Hi and welcome, @IsaPi
You can find some on the Seamly pattern cloud: https://seamly.cloud
And here I shared some things from Winifred Aldrich: Valentina E-Book : Version Française? - #20 by Grace
I also have a blog that I have a few instructions on the Burgo method: www.graces.co.za
I think these should help you to get up and running 