https://www.cnx-software.com/2017/09/04/espduino-32-wemos-d1-r32-esp32-boards-support-some-arduino-uno-shields/?amp=1
The compact ESP32 NodeMCU like board are great for many project, but in case you plan to leverage your existing Arduino shield, it's more convenient to
wemosboardssupportarduino
https://www.instructables.com/Ultra-sparse-Arduino-proto-shields/
Ultra Sparse Arduino Proto Shields: This "photo instructable" is intended as more than just a "look at me". There are resources attached that some may find...
ultrasparsearduinoprotoshields
https://www.cnx-software.com/2015/11/06/5-add-on-board-for-raspberry-pi-supports-arduino-shields-and-grove-modules-with-caveats/?amp=1
If you have several Arduino shields, you can use them on your Raspberry Pi B+/ Pi 2 board with Cooking Hacks' Raspberry Pi to Arduino shields connection
raspberry piarduino shieldsaddboardsupports