You can take a look at Latoken is a good place to advertise your ICO though they might charge somewhat but not necessary. The DexAge ICO that I'm following right now got listed on Latoken platform as well a few days ago. As for me it is easy to use and user-friendly interface.
Listing on top exchanges is based on review and listing is possible only when an exchange approves your project and sets the price for placing the coin.
Latoken is a good example. They have more simple conditions and an inexpensive listing price. Such exchanges as a Latoken are many they themselves will be interested in listing your coins and will offer you good conditions for listing, you just need to search.