I am a 15 year old and I am currently looking for a fragrance to wear when at school that has a pleasant not agressive smell and is noticable but not pushy. Right now my favorite fragrance is Acqua di Gio Profondo, but it is not too good for fall/ winter. Can someone reccomend something that doesn't cost much more than $100 but isn't too cheap either?
Sauvage Elixir would be a great fall/winter mass-pleasing pick. It's a bit strong, so if it is a bit too pushy for you, I'd suggest 
Brioni (2021) Eau de Parfum. Woody/freshie with violet to tone down the ambrox/ozonic notes. Also has a bit of sweet apple so makes it work well for the colder months. You can find Brioni for like $50 online which is an absolute steal for such a high quality frag.
A popular fragrance with good performance at the moment is 
Hawas for Him
It will work in cold weather no problem with its strength and great longevity.
Eros Flame is a nice fragrance popular with your age group and above. There are the regular 
Eros Eau de Toilette that also come in EDP & Parfum
A very popular one also from Versace is 
Versace pour Homme Dylan Blue Eau de Toilette
You could try something from The Most Wanted line by Azzaro like 
The Most Wanted Parfum or 
Wanted by Night
You could also look in to the Spicebomb fragrances from Viktor & Rolf who just brought out a new version of Infrared 
Spicebomb Infrared Eau de Parfum or there is the very popular 
Spicebomb Extreme
You could look in to 
Y Eau de Parfum i got a bad batch but most people get good performance from it and would be good for your age group.
All of those are within your price range and would be good for school.
