Are you talking about readers who pick up on a third party without you mentioning it? If so, the only two readers I've found are "TJ373" and "Psychic Harmony56".
I haven't seen Psychic Harmony56 online in a long time but I know TJ373 is usually on early in the mornings. I'd recommend you send a message for an appointment because when he's online he's super hard to reach due to the amount of people who read with him. But the few times I did catch him without making an appointment was between 7:30 - 8:30 am PST.