Cynthia Lin produces some well-arranged songs at different levels, with strumalong videos to help you learn through playing along with her. The songsheets are always free at Bandcamp (you can just enter a payment of $0 – or more if you wish to make a donation to her).
Tutorial playlists include Beginners 1, Beginners 2, Fingerpicking and All Uke Lessons & Tutorials (currently over fifty videos). There are also regular Live Jams (eg at Xmas or on certain topics, such as Beatle songs).
Here’s one of Cynthia’s fingerpicking section songs – a lesson on how to play Sound Of Silence by Simon & Garfunkel: