You might be best off getting a usb extender. I have 1 tucked in to each kit so that I don't have to get specialized cables of different lengths for when I might use a tablet or what have you.
On the iPhone side something like this:
Amazon.com: USB C Male to USB C Female Adapter Extension / EASTWILD Type C Extender for Samsung DeX, Compatible with Galaxy S9 / S9 Plus / Note 8 / S8 / S8 Plus MacBook air and MacBook pro and All USB C Devices: Electronics
www.amazon.com
If I read your original post correctly about wanting micro usb to lightning then you could try this:
I run a 1" or so usb-c extension, i keep a few in my kit to clear my phone cases. Also, if you search around on amazon a bit you can find some that are designed with a slightly longer plug.