The 737 Max 8 has been the best seller of the Max product line. The Max 7 has barely sold at all and Boeing even had to redesign it to be a shrink of the Max 8 rather than the rework of the -700 that it was originally intended to be. Southwest and WestJet have bought them but they are about the only ones. I guess production examples have started to come off the line during the grounding. When you go around the back of Renton, amongst the stored Southwest jets are a bunch of the Max 7s. I guess certification and delivery of these will be something intended to follow on closely from the return to service of the Max 8 and Max 9 jets.