The start of a community made list of MicroPython forks, please do issue/PRs or email me to get edits here: pt@adafruit.com
Chart!
MicroPython
http://micropython.org/
https://github.com/micropython/micropython
https://github.com/micropython/micropython/network <- sorta works, 100 most recently pushed forks.
MicroPython - micro:bit
https://github.com/bbcmicrobit/micropython
MicroPython - openmv
https://github.com/openmv/micropython
RockySong - OpenMV port to i.MX RT1050/1060
https://github.com/RockySong/micropython-rocky
MicroPython - PyCom
https://github.com/pycom/pycom-micropython-sigfox
MicroPython - LEGO
https://education.lego.com/en-us/support/mindstorms-ev3/python-for-ev3
MicroPython - Xbee
https://github.com/digidotcom/xbee-micropython
MicroPython - Casio
https://edu.casio.com/products/graphic/fxcg50/
https://blog.adafruit.com/2018/12/06/python-snakes-its-way-to-the-casio-graphing-fx-cg50-prizm-calculator-casioeducate-casiojapan-micropython-micropython/
MicroPython - Numworks
https://github.com/numworks/epsilon
https://github.com/numworks/epsilon/tree/master/python/port
Pycopy
https://github.com/pfalcon/pycopy
http://www.pagema.net/micropython-fork-wars.html
https://www.blog.pythonlibrary.org/2020/02/10/pydev-of-the-week-paul-sokolovsky/
MicroPython - Microsemi, RISC-V (RV32 and RV64) architecture
https://content.riscv.org/wp-content/uploads/2017/12/RISC-V-Poster-Preview.pdf
MaixPy - Sipeed
https://github.com/sipeed/MaixPy
ArduPy - Seeed
https://github.com/Seeed-Studio/ArduPy
ESP32 ones...
loboris
https://github.com/loboris/MicroPython_ESP32_psRAM_LoBo
CircuitPython
https://circuitpython.org/
https://github.com/adafruit/circuitpython
https://circuitpython.readthedocs.io/en/4.x/README.html#differences-from-micropython
CircuitPython - TI (called TI-Python)
https://blog.adafruit.com/2019/01/28/ti-planet-ti-python-import-sys-reveals-adafruit-circuitpython-on-ti-83-premium-ce-calculator-tiplanetnews-ticalculators-circuitpython-circuitpython/
CircuitPython - Gamebuino
https://gamebuino.com/
MicroPython - RT-Thread port with an excellent MicroPython IDE
https://github.com/RT-Thread-packages/micropython
https://marketplace.visualstudio.com/items?itemName=RT-Thread.rt-thread-micropython
Name, is it also called MicroPython?
Where it is located, is the source code available?
What chip(s)/platform(s) are supported?
Who are the authors/maintainers?
2-3 sentences of why the fork was made or link/overview.
Somewhat related, here is a "List of Linux distributions":
https://en.wikipedia.org/wiki/List_of_Linux_distributions