Canada is a cool climate country. That is not a limitation, it is the whole style.
The short answer: Riesling and Cabernet Franc from Niagara, Pinot Noir and Chardonnay from Prince Edward County, Syrah and Bordeaux blends from the south Okanagan, aromatic whites from Vancouver Island, Tidal Bay and traditional method sparkling from Nova Scotia, and hybrid whites and ice cider from Quebec.
Niagara Peninsula, Ontario
The largest and most established region, and the one with real sub appellations: the Beamsville Bench, Twenty Mile Bench, Lincoln Lakeshore and Vinemount Ridge each behave differently. Riesling and Cabernet Franc are what Niagara does that the world cannot copy easily. Cave Spring, Tawse, Hidden Bench, Henry of Pelham, Stratus and Bachelder are the names to know. Baco Noir, a hybrid, is the region's honest everyday red and nobody should be embarrassed to buy it.
Prince Edward County, Ontario
Two hours east of Toronto at roughly forty four degrees north, on Trenton and Black River limestone that is around four hundred and fifty million years old. The limestone plus the cold lake is why the Burgundy comparison is more than flattery. Norman Hardie, Closson Chase, Rosehall Run, Stanners, Trail Estate and Hinterland for sparkling. Vines are buried every winter here, which is why volumes are small and prices are not low.
Okanagan Valley, British Columbia
The one Canadian region that ripens serious red. The north around Kelowna is cool and does Riesling, Pinot Gris and Chardonnay; the south around Oliver and Osoyoos is near desert and does Syrah, Merlot and Cabernet Sauvignon. Mission Hill, Quails' Gate, CedarCreek, Tantalus, Painted Rock, Phantom Creek and Nk'Mip Cellars, which is owned by the Osoyoos Indian Band and was the first Indigenous owned winery in North America.
Vancouver Island and the Cowichan Valley
Small, wet, maritime and increasingly good at aromatic whites and sparkling. Blue Grouse Estate and Unsworth Vineyards are the reference producers. Ortega is the local specialty grape and it makes a genuinely distinct wine you cannot buy from anywhere else.
Nova Scotia
Tidal Bay, introduced in 2012, is Canada's clearest appellation statement: a regulated low alcohol aromatic white blend built around L'Acadie Blanc, Seyval Blanc, Vidal, Chardonnay and Riesling, designed for shellfish. The sparkling is the other story. Benjamin Bridge makes traditional method wine that competes internationally, and Lightfoot & Wolfville is right behind it.
Quebec
The IGP Vin du Québec designation covers over one hundred and fifty producers, concentrated in Brome-Missisquoi. Frontenac, Vidal, Seyval and Marquette are the working grapes, chosen because they survive the winter. L'Orpailleur, Domaine Les Brome, Vignoble du Ruisseau and Coteau Rougemont are the reference names, and Quebec ice cider is the category the province genuinely invented.
How to buy across provinces
Interprovincial wine shipping remains restricted and the rules differ by province, so the practical route is your provincial retailer, the winery's own shipping where permitted, or buying on the ground when you travel. That is a policy problem, not a quality problem, and it is the single biggest brake on Canadian wine.