Happy New Year and welcome @anyon1! Glad to have you on-board 🙂
I’d recommend jumping into our Theory & Jamming Course as it covers the fundamentals of music theory and teaches you two ways to solo.
We’ve also got quite a few soloing-based lessons in our Concept Series. If you click “soloing based” in the search filter on the righthand side of the page you’ll find those lessons.
You can also use the same filter for Ukulele Songs. We’ve got a lot of lead playing lessons there too 🙂
P.S. A new blues based soloing lesson is coming this Friday!