Unless you have a reason to favor front squats I would do them after deadlift rather than before. And 3x3 will only work for so long. Eventually you will need to do 5x3, or even 8x3, if you plan to do triples. Then again, since you’re doing squat work on the other days it might keep moving along just fine that way.
Neck? Why neck? You mean traps? If you want to get a big yoke the best thing you can do is get brutally strong at the big movements, especially deadlifts. It will build your traps and make your neck thicker over time. If you really want an extra kickstart to traps then do power cleans, hang cleans, hang snatches, etc. It’s like speed work for the deadlift, way more useful and will build your traps too. That’s how I built my neck to the point that I damn near have sleep apnea now haha.