Nearly all hotels are downtown, about 20 min from Campus. Here are some recommendations for decent hotels (personal selection). Booking can be done via the HRS portal (or your preferred app).
Link to Hotel Booking App "HRS" Aachen
Hampton by Hilton Aachen Tivoli
Best Western Plus Hotel Regence
Novotel Aachen City (directly at Bushof)
IBIS Hotel Aachen Hauptbahnhof
