Well since all Golden Age comics were marketed toward kids I think it's a safe bet that you can find a few (thousand) here on the site.
Of course some have content that would be considered politically incorrect now-a-days (especially some of the WWII era titles) so you may want to review titles yourself before passing them on to kids so that you can explain to them about the use of stereotypes in less enlightened times, how things need to be understood within the historical context they were written, etc...
Three fun titles that I can recommend would be Animal Comics, Jingle Jangle Tales, and The Adventures of Peter Wheat, which can be enjoyed by kids of all ages.
Best
Joe