Casino for Quick Play

I plan to play at American Luck social casino. I have already registered and received my welcome bonus. I think these coins will last me a couple of days. But I'm wondering what promotions are the most profitable for getting a lot of coins? Does anyone regularly check this section? For example, I know there is a bonus for daily logins. The main thing is not to miss a day, otherwise you'll have to start all over again. And every day, the bonus coins and free spins increase. There's also a "Hit the Jackpot Raffle" social casino promo on the American Luck website. However, this promotion ends today, which means that there will soon be something new and interesting for players. As a beginner, I want to learn about your experience playing slots. Can you tell me what slot characteristics to look for in order to understand how many coins it can give?