If it's just advice you want there are a ton. Nut you're never really going to know what suits you until you try following them and checking for yourself and as per your results. Statistics and advice otherwise is easy to come by. The same logic applies for betting systems and anything really related to sports betting because the important thing is it working for you.
For example, I use https://777score.ph/. Partially because they give me what they believe are the best picks from analysts around. No fluff or anything. And I use it for American sports betting because I don't have to actually have any knowledge about it. It's more like a do as you're told system. That works for me. Personally I prefer a no questions asked system than something I can learn how to do on my own because I don't have time for it. So advice is less important to me than winning picks.