Need an advice...

Hello, I joined to this forum because I know not much about methods of earning with your websites , but I have high hopes that users will show me some right path .
1) what kind of websites could be profitable ?
So far I had only 1 website about PTC websites (3 tier domain) , it was getting about 30-40 organic visits /day .. 90% of traffic was search traffic , cause I don't know ways to increase traffic to my website .
Now I want to take it serious and build a good website , but I am still thinking over what niche to choose .. So far I am contemplating over : Amazon product review website , gaming reviews website , sports betting and etc or crypto faucet website ... Tell me which one do you reccomend ?
I want to earn from ads (popup ads etc) after I gain enough stable visits and also downstream converting ... Thx in advance.

The niches you've written above are not bad at all. What I can suggest is to spend a month or two reading as much information as possible on BlackHatWorld. I bookmark many methods, read them, write them down and then analyze them to extract the useful information and benefit from it. BHW is a wonderful place with a nice community - a true gold pot. That's my advice Welcome

You're probably not going to receive a warm reception having such an open ended question which is practically asking for a business plan, but I will help you along so you can come to conclusions yourself. Some questions to get an idea of your situation:

What country are you from? Is there a lot of internet usage there? What are common traits of the average internet user there?
Do you have a high budget? Can you afford to pay a writer? Your English is quite broken and even native English speakers struggle with internet marketing in the English speaking world nowadays.

hello i think blackhatworld is full of information in making money online with website.
keep reading and gain knowledge , then try to do it in action