I wonder if you have mining Monroe before, I think you can try to use personal computers to dig Monroe coin and replace it with Bitcoin. If PC CPU and GPU are still not too bad(I have a i7-4710 processor and AMD 8970hd card), about 30 Day can dig 0.1 XMR and MIN 0.1XMR can extract , according to the exchange rate of today's currency, you can exchange 0.026BTC（https://www.binance.com/trade.html?symbol=XMR_BTC）. If you are interested in mining please follow me, I can tell you how to do it(https://steemit.com/cryptocurrency/@ Butiger/how-you-got-involved-in-cryptocurrency)