I tried a few of those threads but still a dead end. Some threads concluded that the Park FR-4 would do it but the Park web site says the FR-4 is a 21.6 mm diameter, 20 spline puller. The other recommendations are for Bike Tools and they are out of stock on one and indicate that two other manufacturers are no longer making them.

This one looks more like a 30 mm diameter with 24 splines so I doubt the FR-4 is going to work. Ebay has one helicomatic tool and some that are not splined.