Do not look at what the fast riders are using. The pro’s will often choose less grip for a trade of in lower rolling resistance, which for amateurs might be the wrong choice. Because the more gippier tire might be faster overall because it gives more confidence and less slip ups.
I personally always use a very aggressive (mud) tread profile in the front and an all round tread profile in the rear. This for me is a good trade off between grip (confidence) and rolling resistance. If i had multiple wheelsets, i would get some more options, but as I’m running the same wheels and tires all year long, and don’t care to change them depending on conditions, this is what I use. YMMV
So for example
Schwalbe X One Bite front
Schwalbe X One Allround front
Vittoria Terreno Wet front
Vittoria Terrena Mix rear
Dugast Rhino Front
Dugast Typhoon front
+1 for tubeless. And if its allowed, go wider