After a long search, I found this keyword research tool, it is not easy to find one LTD product for keyword research with a generous number of searches monthly at a cheap price.

A good amount of keywords are shown for each search with many useful information like:

SERP
Google Ads Competition
YOY Change
Google Ads Avg CPC
Avg Monthly Search Vol
Traffic Value
Trend Value
Keyword ROI
Keyword Difficulty
Final ROI

I had also the possibility to exchange some messages with the founder Josh Bachynski, who is very kind, knowledgeable, and helpful.

Thank you