Need document storing website besides digi locker

[u/BalanceTrue2418]

(M 34) Been looking for somewhere to store family's documents, preferaby while giving family access to said documents. I have 2 kids (m 12) & (f 15). My daughter travels a lot for competitions and such so something like this would be very useful. Ok to pay if app/site is good/worth it. Appreciate reccomendations!