My sonadow doujin collection (In exception of two) I’m missing one comic here but these are main ones I have for now. I collected these comics through out the years and are so hard to come by but I’m happy what I have.
Estrus is an interesting one. It’s a SnakexSonic comic(Snake is from games series MetalGear Solid) As odd as it is, this ship sparked when the Japanese actors of Sonic and Snake did a yaoi drama CD. There was a clip on Youtube but it sadly got deleted.