3 spots, 6 receivers, 4 Starting quality. Who do I play this week?

Meant to post this earlier on in the week, but I have 3 WR slots (no flex spots) that can get occupied by those six guys (the last two being late round fliers who I dont see getting much playing time). Its pretty much a week in week out thing. I had Brandin Cooks on the bench last week but still won. After the week he had, and the possibility of B-Marsh being out (although hell probly play), Ive made the switch, but am teetering back and forth. Thoughts?