M.2 is the way
People have already achieved it by hardware hacking
People have already achieved it by hardware hacking
My hope is the next Pi model B might include an M.2 slot (maybe 42mm long) on the bottom.
Which ones are you seeing with M.2 slots? I've clicked a good 5-8 of the top listings from that list for which it would make sense to have such slot and they're missing it.