You can check out relative profitability and how much it cost to set up a masternode on mnrank.com and masternodes.online.
I personally like and own Kore and Magnet. There are other which I like but missed out on were ALQO and PIVX.
how much is the cost to get masternode of kore or magnet
Magnet is around 2700 and Kore is around 1700$ as per today's price. I was out of crypto world for month and a half and now it there are lot more masternodes to choose from. You may want to check out masternodes.online or mnrank.com since both of those contains the link for Ann thread and website so that you can do your own research.