Garchomp from Unified Minds will be the next store promo if you spend a certain amount of money on Pokémon products in participating stores.
It will have an exclusive cosmofoil version with the Unified Minds set logo, the regular version will be a regular holo card in Unified Minds.
This distribution is similar to the Suicune, Moltres, Melmetal promo's we got earlier that were also store promo's.
More details on how to obtain this card will follow soon after Unified Minds will be released soon. So you are advised to keep your eyes open and check/ask your national toy/game stores during release.
Netherlands / Belgium:
Garchomp Promo confirmed for Game Mania Netherlands / Belgium stores if you spend €10 minimum on Unified Minds products.
Also a German version exists. These look like Local Game Stores in Germany will have them, also if you spend €10. More details will follow soon.
Update 3-8-2019: France & Germany confirmed.
If you spend €20 minimum on Pokémon TCG products at Toys "R" Us and Picwic stores.
If you spend €10 minimum on on Pokémon TCG products at participating toy stores (no specific store mentioned).