you looking for a caliber and/or a brand/model rifle?
tikka t3x in 300wm or wsm would work well. i got a notice from grabagun today for a lefty in 300wsm.
What is your budget? Are you looking for synthetic, wood? Stainless/blue?
I know this may sound simplistic, however, what rifles do you like with respect to form, function and features and cross check if those are available in left-handers.