One of my favorite resources for toddler-friendly and preschool level singalongs is the Jbrary channel on YouTube: www.youtube.com/user/Jbrary/videos

Two children’s librarians from British Columbia sing songs (and show actions for songs) from story time such as Let’s Go Riding in an Elevator, Zoom Zoom Zoom (We’re going to the moon), Skinnamarink, There are Bubbles in the Air, the ABC’s to 5 different tunes, Where oh Where are Baby’s Fingers, and LOTS more!!

Other great resources: https://gooddayswithkids.com/2014/07/23/song-resources/ and some of my favorite songs are listed here, with links to lyric and videos: https://gooddayswithkids.com/songs-and-activities/favorite-songs/