How to place two inductors on the pcb? Which is better: example A, B or C?
Consider winding L1 and L2 on the same core and including X and Y capacitors which essentially form an EMI filter.  You have two optimization goals.  You'd want the components as close as possible to the switches in order to minimize parasitics that will affect switching waveforms, while making sure magnetic field produced by the inductors is small and negligible and won't affect the switches.  This would require simulation or hand calcs and knowing the core material and current going through the inductors.