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

Party Games for Adults
Games for groups of six or more that start in a minute and need no board. Incohearent and Taboo suit loud groups, while Wavelength and Just One suit thoughtful ones. Each is picked to avoid long rules explanations.
9 that fit · about $10.65 – $32
Incohearent Party Gameabout $15.99 · amazon.com
Put A Finger Down Party Card Gameabout $10.65 · amazon.com
You Laugh You're Out Charades Gameabout $14.97 · amazon.com
Taboo Classic Party Gameabout $12.99 · amazon.com
Wavelength Party Gameabout $32 · amazon.com
Just One Cooperative Party Gameabout $24.99 · amazon.com
Herd Mentality Party Gameabout $24.99 · amazon.com
Telestrations 8-Player Board Gameabout $31.99 · amazon.com
Spin Master Heads Up Party Gameabout $29.99 · amazon.com

Trivia Games for Adults
Trivia in two flavors: the classic Trivial Pursuit board for competitive groups and I Should Have Known That for casual players who want fun more than a long game.
2 that fit · about $19.80 – $19.97
Trivial Pursuit Board Gameabout $19.97 · amazon.com
I Should Have Known That Trivia Gameabout $19.80 · amazon.com

Strategy Board Games
Gateway strategy games with rules most players learn in ten minutes. Each is chosen over denser games like Twilight Imperium because it plays in under an hour and works for new players.
9 that fit · about $13.29 – $39.99
CATAN Board Game, 6th Editionabout $39.99 · amazon.com
SEQUENCE Board Gameabout $13.29 · amazon.com
Ticket to Ride Board Gameabout $39.99 · amazon.com
Carcassonne Tile Placement Gameabout $28.79 · amazon.com
Azul Tile-Placement Gameabout $31.99 · amazon.com
Splendor Gem Trading Gameabout $31.99 · amazon.com
Kingdomino Board Gameabout $19.95 · amazon.com
Pressman Rummikub Large Numbers Editionabout $25.99 · amazon.com
Qwirkle with Traysabout $29.99 · amazon.com

Cooperative Board Games
Games where everyone wins or loses together. Pandemic and Castle Panic are best for groups that enjoy a tense finish, while Hanabi and The Mind fit in a bag for travel.
5 that fit · about $12.31 – $49.62
Pandemic Cooperative Board Gameabout $49.62 · amazon.com
Castle Panic 2nd Editionabout $34.95 · amazon.com
Forbidden Desert Cooperative Gameabout $38.85 · amazon.com
Hanabi Cooperative Card Gameabout $12.99 · amazon.com
The Mind Card Gameabout $12.31 · amazon.com