Minoxidil. Probably copper peptides (Folligen and Tricomin -- I say probably because there is decent but not conclusive evidence.) Possibly Revivogen. Finasteride also generated regrowth in somewhat over half the test subjects, so the claim that it's merely for maintenance isn't entirely true, at least not for everyone. Possibly dutasteride, which seems to be more effective than finasteride but is not FDA approved for hairloss.
Now, if you mean are there any shampoos other than Nizoral, the answer is no. Henna claims to combat DHT, but there is no proof. It does contain coal tar, however, so it can be used to soothe scalp irritation, and if it in fact helps to regrow hair, great, but don't count on it. Dercose claims to regrow hair, but again, there is little proof. I like the way it makes my hair look, however.