Invisalign can fix larger overjets or overbites than most people think. You do need an experienced Invisalign provider that is committed to delivering great results. For teenagers we use rubberbands with Invisalign to correct the bite. For adults a common technique is cosmetic recontouring of the upper teeth and leaning them back, together with leaning crowded lower teeth forward. Other techniqes can be used in more severe cases.
Also consider the face. An overjet caused by the upper teeth sticking out is more easily corrrected than an overjet caused by a small lower jaw.