There's the Intel Up board. 4 Atom cores, gigabit ethernet, 2xUSB3, 2xUSB2, HDMI and the same form factor as a Pi. You can get expansion boards that break out more USB ports (not on a hub, independent bandwidth), native UART and I2C. I've been playing with them for onboard computing on a drone, so far it is working really well. Price is about $100 for the low spec ones.