The X-T100 is still pretty new. I like that camera. It seems to be a little more compact than the other models like X-E3, X-T10/20. It´s only a smidgen but it´s always a ride on a razor blade to have a comfortable and safe feeling for the grip and not to have a large and bulky housing.
I tried it with a lot of lenses and the heavier they are the more raises the fear of dropping. In many cases I don´t use a strap. Perhaps it would reduce my anxiety. But let´s have a look what could be a second option: a very light and small grip, perfect integrated in the design of the camera!