Networking is key.
Get a job working the ramp at an FBO and get to know Private airplane owners.
Some may let you fly their airplane for just gas or taking care of it when they’re not around.
Anybody offers you a ride in something multi engine or turbine take it just don’t log it.
Get your face and your name known as a hard worker.
Former student of mine who had just started his CFI came to tell me he would quit his training as he was offered a job on a multi engine turbine right on the ramp refueling the airplane.
Guy who managed the airplane got talking to him and there he went.
It’s rare but if happens.