But you can easily create such a brush yourself, create a brush tip like this one and set a spacing about 0.8–0.85 and that’s mostly it.
Self created brush tip:
And there are more bundles offering chains, for instance @FizzyFlower’s “ESSENTIAL” Brushset VERSION 2 star with 400+ Brushes which offers more than 1 chain and tons of other brushes.
Michelist