These tags are invisible to the reader. For most of the time a reader’s eye will just skip over them. If the reader doesn’t notice them then don’t put them into your story because they will just add to the word count.
I was going to place on here from classic literature, but I discovered how few of them were used by great authors. Go to Project Gutenberg.
See for yourself. Maybe we use too many he said/ she said nowadays.
He said, “Hand me the rifle.”
She said, “No, today is the day I’ll get my revenge.”
He said, “He killed my brother.”
She said, “But I get to shoot him first because I’m married to the snake.”
He said, “You win.”
Here’s a good article about speech tags from Grammar Girl: