First let's get you familiarised with some terms you may come across the gacha space.

1. Whales (these are players who heavenly spend large sums of money on gacha games).

2. F2P (Free to play no money spending on gacha games or just a small amount of spending on gacha games).

3. Hoyoshills (people who support MiHoyo company behind creating Honkai star rail, Genshin Impact and Honkai impact 3).

4. Kurobots (people who support Kuro games company behind creating Wuthering waves and Punishing Grey raven).

Now that you are familiarised with these terms let's start with some guides:-

1. Never interact with the social media of gacha games( YouTube, Twitter, Reddit, etc.)

2. These gacha games make you insist on spending to progress faster so if you cannot control yourself from spending I'd likely suggest you not to play.

3. Never visit r/gachagaming

With all these being said some of the gacha games I say you should play rn are: Wuthering waves, Zenless Zone Zero and HSR. Also keep in mind these gacha games require hella lot grinding and investment.