I don't have a problem with them (they're called bookisms, I believe) if:
- You don't overdo it. It's tempting to make every dialogue tag something vivid or extra. Don't. D.W. Smith pointed out in a writing tutorial once that "the word said is invisible." It really is. Be judicious with bookisms. Think of them as salt: a little is good; too much ruins the dish.
- You use them when they are necessary. That is, you use "sighed" because it conveys extra meaning which would otherwise be lost, and which can't be conveyed another way. For example:
"'I hate you,' she crooned."
Crooned means something very specific which is very difficult to describe usingshe said with TKTKTK.
(Credit Kate Sherwood)
Other answers which will be useful to you:
http://writers.stackexchange.com/questions/4751/attributives-in-dialogue/4753https://writers.stackexchange.com/questions/4751/attributives-in-dialogue/4753
http://writers.stackexchange.com/questions/3161/im-getting-tired-of-he-said-she-said-in-dialogue-how-do-i-get-around-ithttps://writers.stackexchange.com/questions/3161/im-getting-tired-of-he-said-she-said-in-dialogue-how-do-i-get-around-it
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