As far as the deodorant, my oldest DS is very picky about what kind he'll wear. I don't know if it's sensory or him just being picky.
(11 years old and stinks like crazy, even though he does take good showers not an hour later he'll be stinky again, I think it's puberty hitting really hard)
Anyway, he doesn't want deo that smells a lot. At first I was buying him stuff like Axe because that's what all the teen boys use now (I guess?) but it was too strong of a smell for him. He also prefers spray over stick, because the spray dries and doesn't feel goopy when he puts it on. Or something like that.
We do have plenty of extra deo around the house now

And settled on either Arm & Hammer stick, or Sure spray. The Sure spray is women's I think but it's unscented.
So you might want to take her to the store and do a little sniff-testing and find out if she has any particular preferences. Or she might have a specific brand she's seen on tv and will want that one, I even saw some Hannah Montana deo the other day. (doesn't everyone want to smell like Hannah Montana?) Or if you've been giving her stick, buy a can of spray and a roll-on and see if she likes one of those better.
Both boys also had the same issue with toothpaste. I thought it was time for the boys to stop using "kiddie" toothpaste and start using the same stuff DH and I use. They didn't like the minty flavor though, too strong. Arm & Hammer again.
Also I know at our school the nurse keeps deo in her office. They don't make a big deal about it, but if a kid needs some, they'll send them to the nurse. A classroom full of 5th graders right after PE can be pretty bad.
And yes, I do remind him every day to put deo on. Some days he's already done it. I don't stay in the bathroom with him because he's a boy and going thru puberty and really
does not want me in there.