We often check Telderi in search of profitable lots for our projects. Pros: extensive database; convenient filters; fraud protection; the ability to analyze the market as a whole (for those who know); there is some basic analytics on projects. Cons: quite high commission; without experience, you can end up buying a worthless website (there are quite a few of those on the exchange). The main thing is to carefully read the terms of service and adhere to them.