Rather than try find a unit small enough to not be in the way, you can also use an OBDII extension cable with a right angle plug, and mount the socket end where it's more convenient. The unit in my signature works fine for Android, and it's the only one they make. It's also inexpensive. Other can suggest units that sleep when the car is Off.
I made the topic name more specific, and will move it to the existing topic in a few days.
Brilliant Silver 2021 Leaf SV40 W/ Pro Pilot & Protection
2009 Vectrix VX-1 W/18 Leaf modules, & 2 lithium E-bicycles.
BAFX OBDII Dongle
PLEASE don't PM me with Leaf questions. Just post in the topic that seems most appropriate.