I don't mean to slag on lk simcoe, but there's a lot of amazing spots in Ontario to ride. My personal favourite is sauble/oliphant- there you can ride warm flatwater, and waves in the same day. Looks like there'll be 4 days straight of sw there this week.
Wasaga (where I live) is mostly a wave spot, but with a flattish inside section. It's prolly the most user friendly wave spot in Ontario due to shallow waters.
I think people from your area tend to go to sandbanks for waves. Can get massive there.
Toronto is close to you as well, giving you options for riding east winds.
Erie has some amazing spots, eastern and western. And lake st clair for miles of butter flatwater.
Just in case you havnt found this site-