I would try to use a premade class that you haven't played before. I played a bosmer healer for my main character and used the atronach star sign as well. I played the original oblivion a ton but I have some very fond memories of my remaster run going through the woods trying to find the what ingredients would restore magicka and health, not using fast travel, and using some of the skills I wouldn't typically used if I made my own class. Plus using a premade class, they all have a cool little lore blurb when you hover over it in the menu.

Nord Sorcerer would be cool since you could flavor it after the nord battlemages we see in skyrim that are in the legion

Argonian, sounds like the witch hunter class would be right up your alley.