I used to live in SE Michigan, sailing a Hobie 18 and a 21sc party barge.
In order of preference,
CRAM events, A great opportunity to sail with other beach cats. You will learn quickly in this environment.
https://cramsailing.com/Creekfleet at stoney creek. hard to beat weekly sailing
The ramp near Selfridge, The water in the NE part of the lake is more like Huron and less like the Clinton river. In addition the shorelines have less sea walls, so this part of the lake has less washing machine chop.
Whatever Ramp is closest.