There are lots of great resources online for songs you can play on ukulele! I’ve put a few links below.
Typically they fall into a couple of categories. There are paid sites that you can subscribe to, and generally they will have (in some cases quite a lot of) free video too, with in-video chord and fingering charts. Look at the free videos and that will tell you what the standard of paid video will be like.
Some sites will offer a great variety of music lyric sheets with the chords displayed above the lyrics. Lots of these sites are free, so if you don’t mind looking up your own chord fingerings, they are a great way to move forward without the expense of a subscription. There are also “fremium” sites that have characteristics of both previously mentioned. You can access and download the music, perhaps as a text file, but if you want to say, change keys, add songs to a “favorite” list, share your songs with a bandmate, they may charge you for that additional service.
Ukehunt.com
From the site: Tabs and Chords | Lessons | How to Play | Ukulele Ebooks | Before you buy
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Uketabs.com
From the site: UkuTabs is your true source to find chords and tabs for all of your favorite songs. Ukulele players all over the world have direct access to UkuTabs its large and completely free song archive which is constantly being updated with new songs. UkuTabs is part of the UkuWorld network which also offers ukulele tips & guides, ukulele scales, chord charts, an ukulele tuner, a chord namer and much more! Join UkuTabs for free if you want to favorite songs and take them with you anywhere you go. Enjoy and join the fun!
https://www.ukulele-tabs.com/
From the site: Ukulele Tabs is a user contributed source of ukulele tablatures and chords. We offer Uke players direct access to our unique archive of Ukulele Songs and many complementary resources for all your uke needs: Tuner, Chord Charts, Scales/Modes and lessons for beginners. We’re the largest community of ukulele players worldwide.
https://www.tabs4ukulele.com/
From the site: Welcome to Tabs4Ukulele.com, a free online ukulele songbook of popular songs. All scores arranged for the ukulele Soprano (although they can be played on any uke) and tabbed by myself. This is not a meta database of uke tabs, but my little contribution to beginners. You may only use this website for educational and personal purposes.
ultimate guitar
This is my favorite, go-to source for online lyrics and chord sheets, for ukulele and guitar both. I have had excellent success, not just finding what I am looking for, but also with the quality of the tabs. This last point is kind of important; most of these free or freemium sites have content that is user-generated and so it’s not unlikely that if you download a song, it is someone else’s interpretation of how to play it on guitar or uke. Your mileage may vary.
If there’s a version of a song you like, and you can find lyric/chord sheets or tabs in the same key as the recording, listen carefully as you play along with the recording. It’s likely you hear at least some differences!