via @marsel_the13th
40c: Maxxis Receptor TR, Conti Terra Speed, Pirelli Cinturato Gravel H
45c: Schwalbe G One RS, Maxxis Rambler EXO TR, CST Foxtrail 29×1,95, Schwalbe G One R
50c: Continental Race King 29×2.0

My Ideal combo is Schwalbe G One R 45c Front and Schwalbe G One RS 45c Rear. But G one R is hard to find lately.