You're going to need a large quantity of mid-size PCB mounted electrolytics, or a handful of large screw terminal ones. Even large can capacitors generally have ripple current rated up to about 30Arms. I would opt for getting a small number of large capacitors.
The RMS ripple current ratings for capacitors will be somewhat frequency dependent, but it doesn't change a great deal. Maybe -25% max from 120Hz to 10KHz. Most datasheets will give ratings at a low frequency (100/120Hz) and a higher frequency (1KHz/10KHz/100KHz).
Make sure you properly derate the ripple current ratings for ambient temperature, as well.