If you're looking for manga similar to SKET Dance: SD Character Flash Anime, you might like these titles.
Yu-Gi-Oh! D Team ZEXAL focuses on humor and all characters are drawn in a chibi style. Different from the canon series, aimed at juvenlies, this manga series is aimed at younger children, and teaches them how to play the Yu-Gi-Oh! OCG with a light and humorous plot.
Another version of the story of the Inspectors and Enforcers from Psycho-Pass, but this time in chibi style! All of the main characters are now in chibi form, and are attending a "Psycho-Pass Academy," which is basically a chibi-fied version of the scenario of the original series. New student Tsunemori and her classmates will use their Dominators to keep their school's peace!
Journey back to Lodoss Island for tales of dragons and dwarves, paladins and princesses, magic and...madness?! All your favorite characters from Record of Lodoss War are back and sillier than ever in this series of madcap short strips that poke fun at all the high fantasy stereotypes you have come to love.