tattoo placement

e

so ive been wanting to get my second,tattoo but I'm not sure where to place it.

I'm rather bony on my ribs and,collar bones. I thought about my shoulder blade but I'm not sure. I don't want it to be in an excruciating area as I've self harmed in the past. I don't want to have those feeling be triggered once again,by a piece of art in my body