1. "He looks pale," she said.

Question

2. "He looks pale," said she.
3. "He looks pale," said the girl.
4. "He looks pale," the girl said.
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Which ones are grammatical? Do you have any rule regarding that?

Answer 1

All are correct, but #2 would probably be used mostly in some kind of literature. It's not the everyday way to phrase this.

The others are fine.

Answer 2

Option 3 is the Best Answer according to me. Trust me, I am a School Topper in Emirates English Speaking School, Dubai, UAE. Even though others are grammatical enough, most teachers have Option 3 in mind.