is there another way for using sony QX100? it has no hotshoe
If your camera doesn’t provide hot-shoe access, there is no easy way to integrate it with Reach M+.
However, if the camera can output a signal of shooting through any other port, it’s more likely you can use it to integrate with Reach M+. In this case, you’ll need to make a custom cable using the Time mark and GND pins of C1 port. Check the Reach M+ pinout for more details.