The Hot 3 Side Bet in Free Bet Blackjack offers various betting combinations with three cards: two from your hand and one from the dealer's hand, leading to different payout scenarios. For instance, you might encounter a 'total 19' combination, comprising cards like an 8 of hearts, two of diamonds, and nine of spades. Alternatively, a 'total 20' combination could include an eight of hearts, two of diamonds, and 10 of spades. Moreover, there's the possibility of achieving 'total 21' through cards, like a nine of diamonds, two of diamonds, and 10 of diamonds. Besides these examples, you might also try your luck with the '777' combination, where the cards consist of three sevens of different suits.