Kakashi Summer, Hashirama NY, and Rin would work. For lightning main, Anbu Tactics, Wind style blast cut/lightning armor, calm mind, and wind style clones/bloodthirsty would work. Kakashi chases to high float, so the lightning tiger works well. You can run lightnings repulse to knockdown to get to hashirama's combo, or run the low float to repulse main chase to get to kakashi from his own mystery.

Some great ninjas to work towards recruiting and 4 starring for their breakthrough are Madara Edo Tensei Release, and Naruto sage of six paths. With their breakthroughs, they are great ninjas in the current meta. 4 star Shisui Susano'o is also a great breakthrough to work towards, however he tends to be very expensive.