Lovely point about getting wines from around the world.
To that:
Clonakilla Shiraz/Viognier (seconding Mark Golodetz) this is a dynamite wine from an off the beaten path, if highly regarded, Australian winery.
Dry River in New Zealand
Spain, the single vineyard Bierzo’s from Palacios as well as something classicly styled from Rioja (LdH is fantastic, so are many others and I have a soft spot for Muga Riservas)
Portugal-the Poeira wines are exceptional and will easily age 20+ years. Though I would take Tomas Costa’s recs over my own.
While 2019 in Europe is regarded as a good vintage, it was a VERY warm vintage. I would look to cooler regions for off the beaten path wines.
Loire Valley-Raffault Les Picasses, Theirry Germain Franc de Pieds, Breton, Baudry, and, of course, Rougeard.
German Rieslings are excellent and vintage Champagnes for all the previously offered reasons.
The 375ml of Y’Quem is a great suggestion as well
For Oregon, it was a remakably cool vintage vs many other areas. But the wines are great, very classic, and producers with a track record for aging would be good choices.
I like our Pumphouse Block from Temperance Hill, Oracle Vineyard, and the two Heritage wines we made. But Patricia Green’s Wadensville and their Ridgecrest bottlings are fantastic, as are Kelley Fox Bottlings from Maresh. Brickhouse, Cristom, Bethel Heights, McKinlay, and others make wines to last 20+ years. We had 94 Brickhouse last year that was a ridiculously good bottle of wine.
There are lots of more knowledgeable California consumers than me, but I would suggest both a wine from Edmunds St John and Ridge Montebello. Cathy Corison would be a good bet too.