Hashirama NY is a great alternative to masked man. As for another lineup, I would recommend Choji GNW BT, Hashirama NY, and Guy/Shisui. You can get choji fragments from the recruit's exchange with ninja points from survival to help work towards his breakthrough.

Minato scales from his chase attack, so a unit like genma could work with him. Shisui's barrier buffs wind units so he's alright support early on. While I don't think it'll be very good, Naruto AS also can help with critical. Some other generic supports like Guy, Tsunade Sannin, and GNW tenten could work. If you upgrade rin to 3 stars, she'd be a good support as well.