I think all sites that give pre-game predictions, speculations, and analysis you will see while searching are all good. As long as they provide some explanations for why the prediction turned out like that, that's already good.
There are lots of them but I don't think all of them are helpful or legit. We know youtube and most of the videos there are fake and are only clickbaits to get views. You will think some are helpful just because they provide some reasoning but what if they are lying? And you won't know it because you your self don't also have an idea on what's going around.
You have no choice after all but to believe in those predictions that you will encounter since you don't even understand the part of their analysis as you are not familiar with it.
Huh? That's crazy, no wonder why there are still people that get scammed because of that poor mindset. If you are not familiar, much better if you stay away and learn it first on your own so that you won't get fooled by someone else.
Try to make a test. Risk some money and feel the actual betting on those sports you want to try. Nothing beats the real user experience compared to just reading suggestions.
Yes this will all end up here. After we take up suggestions we are going to test it and see if they really work or not and yes that amount should only be small. Only increase it if the winning rate of tips are high.