Hi, there is a database of Goldmedal plants online
Goldmedal plants here
You can filter your search by "year won" to narrow the search down to the 2019 winners.
Additionally, there is a press release of the winners
2019 Gold Medal Plants press release here
You can also try Google image searches on the plant names.
Hope this helps.
The database of Goldmedal plants is online.
Additionally, there is a press release of the 2019 winners