I also tried to make combinations that were exciting. I feel like a huge dragonborn barbarian is played, but a halfling barbarian will give you room to roleplay like a boss. I tried to make a variety of interesting characters, so some of them are mashed up a little so they can be role played well.
I want them to use a great character sheet to play in great ways, so I might as well do the first half so they can focus on the second. It’s important to figure out the things you need the kids to know/do and the things you can do with/for them. I run a D&D club at my school, and this year I decided to generate a variety of character types and their full sheets on DnDBeyond – this way the students could just have the character made and then work on how to read and use the character sheet.
I love reading them, and creating them, and doing so on DnDBeyond is a really effective way to do it, which helped me greatly recently. D&D character sheets are wild arcane artefacts of text/number alchemy.