Looking for system Openings

Do you have any recommendations for low theory system openings with white?

suitable for 2000+ (lichess) ideally. if chessable, then <100 trainables would be amazing (shoutout to c3 venom!)

Background played the london until 2k rapid, then switched to the jobava, but that turned out to be way too transpositional. switched to c3 venom and loved the low theory and hard rules to live by. ive looked into stonewall and colle zuckertort courses on chessable but wasnt impressed comparing to the c3 course