Don't use use whattomine to determine the profitable coin to mine. The coins at the top are already being mined and have insane difficulty and hash power on it. You need to do some speculative mining to determine what will bring in good money. Scour all of the crypto forums, chats, social groups, etc. to watch for new coin launches. If it is interesting and you think it has potential, check to see how many people are mining it and what the difficulty on the network is. If you're early enough, you'll be able to mine a ton of it and get out. When it hits an exchange, watch the price and see if you want to sell. In between your spec mining plays, choose a default coin to mine so you're making money. Some people choose ETH, Sumo, or Nicehash. I do Nicehash in between the spec mining so I am always making money when I have nothing good to mine. This takes a lot of research and some instincts to know what will make you money, and what won't. The more you read launch announcements and mine shitcoins, the better you'll get at finding gems.

how many gpus you are going to use?