The best form of dialogue attribution is said, as in he said, she said, Bill said, Monica said. If you want to see this put stringently into practice, I urge you to read or reread a novel by Larry McMurtry, the Shane of dialogue attribution. That looks damned snide on the page, but I’m speaking with complete sincerity. McMurtry has allowed few adverbial dandelions to grow on his lawn. He believes in he-said/she-said even in moments of emotional crisis (and in Larry McMurtry novels there are a lot of those). Go and do thou likewise.