For tornado, shield, DI away from the direction they are moving in, then AD. If you feel like attacking it, dair, and sometimes FCAS will work.
For shuttle loop, like the above post said, DI up from it when it is in the most of the animation, if it was on the start of it, DI away. The best option though it to never approach with an attack, use run shield against shuttle loop, or even do walking to fake/bait it and use good spacing in attacks. If he's going to glide attack, expect a dsmash after it almost always, which means leave your shield up for 2 attacks, or if your timing is good, spotdodge the glide, shield the attack. If you happen to get in the "eye" of the storm of shuttle loop (where you don't get hit), dair.
Is there a possible way to make it so when bowser grab releases me, that I can SDI or something to get more farther away? Or should I just attempt to air release (overall decent option).