Hey, first post!
Not sure how much my opinion is worth, but as a Melee Link main, I very strongly vouch for the bomb waveland. The idea is pretty simple, just short hop a bomb throw and then waveland after it. Link's wavedash is awfully short (though it seems longer in PM than in Melee), so it's not going to give you anything breathtakingly powerful. Still, the little boost forward or backward helps you keep your spacing, and it allows for follow-ups on bomb throws from slightly farther away. I think it can probably be done after a sideways AGT to gain a little bit more distance? Haven't tried it myself.
Also, I second the spin attack cancel. It's not something you can do often because hitting yourself with a bomb is still punishable, but it's a great baiting trick against someone who forgets that a bomb is about to go off (or if you've thrown it up and it's going to come down on your head).