I don't really make much of a distinction between "academic" and extracurricular", given that I think the extracurricular things are equally important in developing life skills and at least some of them may form the basis of a career. My teenaged dd is not too interested in studying in a directed way (i.e. exams, courses etc), though she likes the actual subject matter well enough, and does not expect to pursue a career which needs a high level of academic qualification.
She used to do lots of "academic" subjects such as maths, science, philosophy and history recreationally in groups. The opportunities to do that have dropped off dramatically as so many of her age peers have concentrated on exams, while the younger kids aren't at the same level as dd. Anyway... she does
Martial arts 4x a week (eve/weekend)
Voluntary coaching martial arts weekly (eve)
Strategy games weekly (day)
Guitar group weekly (eve)
Girl guides fortnightly (eve)
Choir weekly (eve)
Guitar lesson fortnightly (daytime)
Minecraft weekly (daytime)
Ice skating fortnightly (daytime)
Chess weekly (daytime)
Park play weekly (daytime)
Sailing weekly (weekend)
plus some ad hoc volunteering and babysitting which she's looking to expand, or maybe get a part-time job. It sounds a lot but isn't really, because she's not doing any formal study alongside it.
My 8yo does mostly daytime stuff because she's tired by the afternoon and so am I, plus I don't enjoy fighting traffic if I can avoid it! She does
HE park play 3x a week (day, different groups)
Toddler music weekly (day)
Chess weekly (day)
Drama weekly (eve)
Sports weekly (weekend)
They both do some occasional one-off workshops during and after school hours.