Here you go, the same build with an i5. The i5 will not really give you much better performance as the i3 6100 can handle cards like the RX 480 and GTX 1060. Would you also want an SSD for much better computer loading times? Also, in this build i added a power supply, i forgot to in the first one.
For the monitor, would you like an IPS panel or a TN? A TN is generally better for faster response times(the time it takes for a pixel on the screen to change colour) and an IPS has much better viewing angles and better color for Photo/Video work etc.