My favorite row style is pook row. It's like a kroc row, except you do 5-8 reps with one hand, switch, 5-8 reps with that, switch, etc til you get to your desired total.

Each arm only rests while the other works, it's more time-efficient and higher intensity than normal kroc rows. More options to increase intensity as well: n+1 reps per switch, n+1 sets, ladders, etc. I like them.