What do you think would be worth researching regarding the Price Action Trading?

Hachot,

I'm in the process of compiling all my PA learning at the moment, which I'll share with you if you interested.
I agree with Tymbeline, Bob Volmans books are great. I don't trade that manner but still a great read.
Have a look at Mack's price action trading (its a real gold mine he also has a free youtube channel)
Then I'd recommend you study supply demand (readthemarket.com been a great help in my trading although many of the principles still allude me)
Then my 5-cents worth. PA is all about the patterns that price makes these exist on every layer of the market even within candles. Understand patterns their relative scale and how they turn the market as well as the areas where the turns are probable.

Best of luck