If I feel my dialogue needs a tag I very rarely use anything other than 'said', but on occasion I do slip something else in. However, I'm a little sketchy on their usage. I've just used 'persisted' - "Come on, just flip it," I persisted (because my character has already requested the coin be flipped on two occasions by this point) But does that even make sense? Can someone 'persist' a line of dialogue? It's a bit like 'laughed'. Can you actually laugh a line? If, for instance, my character was angry, I couldn't say "Get out of here!" he exploded, so by the same token how can one 'persist' a line of dialogue?