[b0unce. [?]]

Hey folks, noob to this forum and with my f30 still. Looking for some solid advice/help for my upcoming wheel and tire choices.

I'm looking to run a 19" squared set up. I've decided to go cheaper this round and be able to rotate tires to save some money.

My f30 328i xdrive is dropped on H&R sport springs currently. Without rubbing but having a flush fitment, what set up am I safe to run with?
Would 19x9.5 wheels work? What offset/spacers for front and rear? 245/40's squared would be fine?

Thanks in advance.