Anders Mouridsen has a lesion for Fields of Gold you may enjoy.
https://www.guitartricks.com/tutorial.php?input=1150
Here is a link to a YouTube video same idea in a Blues style.
https://www.youtube.com/watch?v=vc-J_Ew8Jw0
Caren Armstrong on this site has a better starting level here.
https://www.guitartricks.com/lesson.php?input=22318&s_id=1792
To find Caren's I just went to the opening page, clicked on Instructors then typed Finger Picking in the search box.
I enjoyed watching the link, the guy is very good. Thank you.