This week’s beginner song is nooot beginner friendly IMO!
Have you noticed on the pause menu there is a chord book of the songs that appear in the song? That could help and also you can use the arrow keys (not in Riff Repeater (RR) settings menu, it’s in the regular menu oops) to scroll around slowly.
I have been working through these books because I heard good things and they have some online resources, maybe some of these shapes look like the ones you need?
https://www.dummies.com/article/academics-the-arts/music/instruments/guitar/rock-guitar-for-dummies-cheat-sheet-2-296650/
https://www.dummies.com/article/academics-the-arts/music/instruments/guitar/guitar-for-dummies-cheat-sheet-207443/
From E Standard to Eb Drop Db, you can first do the transition to Eb Standard:
E-A-D-G-B-E becomes Eb-Ab-Db-Gb-Bb-Eb.
Then add the Drop Db:
Eb-Ab-Db-Gb-Bb-Eb becomes Db-Ab-Db-Gb-Bb-Eb.
In terms of the chords you can do this in reverse, “shift” the notes a half-step and don’t forget to account for the drop on the 6th string which adds a whole-step to the one string.
Someone please correct me if I made any mistakes, hope this helps.
Also, I found this website for identifying chords last week, just make sure you have a basic understanding of what you’re doing and “check your work”:
https://jguitar.com