So tipper jab 1 is pretty good. It's got some frame trap utility but from what I can tell, I can't get it to combo into anything but jab 2. It's got pretty decent range for a jab and when you get the tipper, it moves the opponent toward corrin. From here, I've been grabbing people out of shield.
Tipper usmash is underwhelm against grounded targets but if you can utilt then shff, you can bait an air dodge leading to a tipper usmash. Good damage, but there are better options.
Dsmash has a really nice tipper. It hits from behind and unlike marth, it's active at the same time as the forward dsmash. Great for punishing rolls too and can kill quite early at the ledge.
Dragon Lunge's tipper is amazing. It can combo from fair for the kill. You can ledge guard with it and if you aim it for a 2 frame ledge punish the tipper will kill but if you miss, you will get a stage pin as well where you are in a scary position to punish get up options with your kick.
Fsmash, everyone's favorite. The tip can be aimed down straight or upward. If you tilt the fsmash downward, you can tipper 2 frame ledge grabs and regrabs.
These are all the tippers I could find. At first I thought nair might have a tipper since corrin uses his "spear" hand. Whenever corrin uses that weapon, it seems to have a tipper effect on it. The tippers I've listed all use the spear-like animation. But with nair, corrin uses both weapons with the spear starting from behind. I've tested the damage on both the sword and the spear at close and tipper range and found no differences. Both nair and dair look like they should have tippers but don't. Also, fthrow and back throw both have tippers if a third character(not the one being thrown) jumps into the spear. It has ridiculous knockback. From what I can tell, the sword doesn't have any tippers on Corrin's moveset. And if it does, it may only be in terms of angle and/or knockback. Can anyone find tippers I may have missed?