Alumo and Bonfanti are my go-to fabrics. In particular, I like the Alumo 3-ply, although it is offered in a limited range of colors and last I looked, in no patterns. I also like D & J Anderson sea island very much. I'm surprised to hear that Riva is single ply. Are you sure? As far as I know, Bonfanti's fabrics are all 2-ply.