If you are looking at a Block Sound 4 deck, then you aren't too bad off on number of options. the only one who doesn't have many forms this block is Kidomaru.
The State 2 sound 4 set finally finished in Sage's Legacy. It runs ok, but the lack of a great kimi is a bit difficult to work with.
The Chakra Eater versions from set 23-24 make me scratch my head a bit, but it works well enough for a fun deck.
Then we have next sets Chakra Give theme...which just looks plain pathetic. Though at least bandai didn't give Tayuya and Kido effects from that crappy theme.