Udoo x86 Ultra - Udoo x86 Ultra is a modern PC, known as the most powerful X86 maker board and an Arduino 101 compatible platform.
Intel NUC boards - Four-by-four inch Intel NUC boards come with a soldered-on processor.
Radxa Rock - The Radxa Rock steps up the microprocessor game with a quad-core 1.
ESPRESSObin - Electronics, Single Board Computer, and x86
Banana Pi - Banana Pi is a single-board computer made in China. It can run Android, Ubuntu and Debian.
esp32 - A very cheap small chip, compatible with Arduino.