So, you are looking for a place where to stay in Delhi with family. I think that being a Delhite, I am in better position to guide.
There are different kind of places in Delhi. Every location is not suitable for every kind of visitor.Delhi Darshan
Where to stay with family, should be the first question after booking flight, train or bus tickets to Delhi. Because at last moment you will not get better price or the room choice will not be great.
You may be interested to check Delhi Tourist Blog as there is number of small blogs which are helpful to passengers visiting the capital of India.
Find what kind of “Nature of Visitor” you are from above list.
I can guarantee you that Delhi is a very big city. So you have a lot of options. Few options will suit you and others wont. Go ahead and check the best location to stay in Delhi at https://delhidarshan.com/where-to-stay-in-delhi-with-family
it depends on various factors. Such as, are you in transit, coming by train, flight, bus and so on.