Which Contract is the Most Suitable for my Hand

1. Game in Opener’s Major Suit: 26 Total Points and a Trump Fit

If you hold at least three cards in your partner’s major suit, you have at least eight trumps between the two hands because an opening bid in a major promises at least five cards in that suit. A combined holding of eight or more trumps is called a fit.

When you have a fit in a major suit and enough combined points for game, that suit will usually be the best place to play.

2. Game in No-Trump: 25 Combined High-Card Points

If you and your partner have at least 25 combined high-card points but do not have a fit in opener’s major suit, 3NT will often be the best game contract.

3. "Game" in opener’s Minor suit 29 TP's between you and your partner

Because 9 tricks in 3NT scores the same as 11 tricks in 5♣ or 5♦. If 5 of a minor makes, then is is very likely 3NT will make more than 9 tricks giving a better score.