You are probably overthinking it a bit. Poles are where your loops will diverge from one another. You want to be careful having them in places where lots of deformation may happen, especially in multiple directions. Think about where the most deformation will happen on your model and plan to have loops there. You can get away with more than you think and you can edit your topology even in the rigging phase if it just isn’t working. The loops you sketched out I think will serve you well enough. I would move forward with that.
