Portugal - Douro Valley and Porto - Wineries to Visit?

Hello Wine Friends - Headed to portugal for 12 days in early summer, looking for rec’s for some nice wineries to visit… We have 2 nights in Douro Valley ( staying in Alijo) and 2 nights in Porto at the Yeatmen. Would love to some winery/ tasting recs in both areas. Thx - Leah

Check out Roy Hersh’s site Fortheloveofport.com for more recs.
Dinner at the Yeatman was great a couple years ago.