Naruto was in some of the massive filler in the end of the first series when Toonami ended. Naruto Shippouden would be a obvious choice to air. It could run well with Funimations One Piece. On Adult Swim they can let Sanji smoke too <_<.
As for new anime, I think Fairy Tail would be a good choice.
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Nio-chan and Ctes: http://img.imgcake.com/nio/Untitledpngyn.png
BroAndCharAndCtes: http://i.imgur.com/oBQfY.png