For example, in my experience Turkish Super Lig and Portuguese Primeira Liga are a bit more predictable compared to let's say Premier League or La Liga, which often feel more volatile.
I agree with this. I usually bet on the Turkish league and the Portuguese league. Selecting a winner might be difficult, but if you go for goals, it will most likely be accurate. I usually go for over 2.5 goals or both teams to score. I also use this option for the German and Netherlands leagues because they usually score a lot of goals.
Aside from the EPL and La Liga, the French league is a very difficult league to predict. They can decide not to score goals or the favourite team might lose or draw. The Serie A is like that too, but the French league is more difficult.
Aside from some teams like Barcelona, Liverpool, Madrid, Man City, and PSG that usually win and/or score goals, the EPL, La Liga and Ligue 1 are difficult to predict.