Ideas to shop around
Directions rather than one particular thing, for when you’d rather choose. Some come with a few that fit.

Two Player Games for Couples and Friends
Games built for exactly two, so there is no waiting for a third player. The mix runs from quick card games like Jaipur and Lost Cities to deeper picks like 7 Wonders Duel, so choose by how long the pair wants to play.
11 that fit · about $15.99 – $40
The Ultimate 2 Player Gameabout $31.95 · amazon.com
Fox in the Forest Two Player Card Gameabout $15.99 · amazon.com
Solstis Two Player Tile Gameabout $16.99 · amazon.com
Jaipur 2-Player Trading Card Gameabout $26.58 · amazon.com
Patchwork Americana Editionabout $29.99 · amazon.com
Patchwork Expressabout $26.99 · amazon.com
Lost Cities Card Gameabout $21.41 · amazon.com
7 Wonders Duelabout $29.59 · amazon.com
Splendor Duelabout $32.99 · amazon.com
Star Realms Deckbuilding Gameabout $17.95 · amazon.com
Hive Pocket-Size Gameabout $40 · amazon.com

Travel Card Games
Compact games that fit in a bag and teach in minutes, for planes, restaurants and holiday trips. Each is picked over heavier board games because it needs no table space and handles three or more players.
14 that fit · about $5.86 – $29.99
Flip 7 Card Gameabout $7.97 · amazon.com
Scrabble Slam Card Gameabout $9.99 · amazon.com
Clue Card Gameabout $5.99 · amazon.com
Doomlings Base Gameabout $14.99 · amazon.com
Sushi Go Card Gameabout $11.99 · amazon.com
Sushi Go Partyabout $21.99 · amazon.com
Coup: Rebellion G54about $29.99 · amazon.com
Azul Miniabout $21.99 · amazon.com
Travel Qwirkleabout $19.99 · amazon.com
Spot It Classic Card Gameabout $5.86 · amazon.com
Skip-Bo Deluxe in a Tinabout $14.99 · amazon.com
Exploding Kittens Original Editionabout $19.82 · amazon.com
Phase 10 and Skip-Bo Comboabout $20.15 · amazon.com
Dutch Blitz Original Card Gameabout $9.49 · amazon.com