Is the wait between BSC graphic novels agonizing? Try one of the 213 chapter books from the original series run (1986-2000).
Not a graphic novel but still good!
Pet-sitting...for supervillains
If you want to do a deep dive into "popular paperbacks of the 80s and 90s," the Sweet Valley Twins were just as popular as the BSC back in the day. (Just ask your mom, cool aunt, and/or local librarian.)
Stacey fans will find a lot to relate to in this manga-style story about finding your (basketball) team after moving to a new school.
Another based-on-a-popular-chapter-book-series graphic novel adaptation! For the aspiring bakers in the house.
And now for something completely different! Babysitting, but with horror movie monsters.
This is actually my #1 Baby-Sitters Club readalike suggestion! It has all of those "friends starting a business" vibes only with dog walking instead of babysitting.
Have you ever struggled with feeling like you don't have a group to belong to? This one's for you.
While the focus is more on friendships (and rivalries) than the clubs, this series has a lot in common with the BSC!