https://masternodes.pro/ list most of the masternode coins with stats. None of them are as trusted as DASH but there are many with lower cost for setting up one and are providing some higher reward at the moment. Though there would always be (more)risk on investing on new and untested coins.
From what I have seen regarding those masternode coins, a lot of them are just pump and dump in exchanges. Of course, it is different story with Dash, they have been in this market for long time, they already proven themselves. But those new MN coins, if you will notice, most of them are being sold via discord, and the team is anonymous. So even if they do the pump and dump, no one can run after them because you don't know who you are dealing with. So please be careful in buying a MN from a project that is not established in the market.
