Let's say I have some insider information about a coin that is listed but has almost zero daily volume.
I want to accumulate as much as possible but of course it makes no sense to waste tons of money by just buying the whole order book.
Similar placing an order does not make any sense either because there is almost no market volume.
What kind of insider infomation you have and why you can't accumulate as much as possible from that coin by just buying it from where it's listed?
I doubt that you can find a legit service to do the task as the service itself smells fishy.
Be careful about scammers who may contact you claiming that they can help you. Reputed users here won't contact you for such a strange service.