I'll make one when I can, trust me.
As for what to do after the grab in that scenario, at low %s, definatey uair, and if possible, do another uair to follow it up, but if the second one can't connect or you're not confident that it will, just jump away and laser at him as best you can for extra damage. If he's at the point where you just think the second uair will just fail, then throw in a bair or something. If he's not very good at smash DIing out of the uair, then going for that is usually the best option, but if he is good at it, and you're used to which way he'd use to get out of it, you can trick him by bairing and he'll end up DIing into it, letting you go for another aerial. I saw Mew2King do that to Ken in an OC2 video because he knows Ken's just that good and would get out of the uair. If they're at like 130%+ then just bairing would be fine on neutral stages other than DL, because DIing up would result in dieing off the top. Sometimes Mew2King throws in a jab or two after the waveshine for extra %, but doing that too often can lead to predictablility and it is easily escapable if they're aware. If you're used to Fox enough to where you're at the point where you can waveshine fast and far enough to usmash after the waveshine, then doing that at the higher %s will give him less chance of escaping. All he can do if you do it right is smash DI down. I wouldn't say that's it for that scenario, but that's all one would need to know to be useful. =P