I agree with Doug and Jo.
If you've created realistic characters, they'll have their own speech patterns and personalities so a lot of the time, the reader will know who's talking just by what's being said.
But if you need to use tags, follow Doug's advice and use "said, asked and replied" the most. Because these tags are used so often they don't slow the reader down as much. The reader will skim over them and only really see the name, not the dialogue tag.
Tina