You may want to state your budget. you cant rent a room with "reasonably price" in your hand. If you dont want to give a number, a range is good too.
also, if you have any preference for area?
If youre up to something cool and different, look at CitizenM hotel. Theres one at the AMS and one somewhat close to town. Theres a train stop a couple blocks away and the tram #2 (if i remember correctly) stops around the corner.
I stayed at the Citizen M city last Sept since many if not all of the places were already booked due to the conventions going on. All of the room have ensuite baths so to speak. look the web site if youre interested.