Mobile Suit Zeta Gundam, Seisenshi Dunbine Recommendations
Of all Tomino's non-Gundam works, Aura Battler Dunbine is probably the closest thing to basically being another Gundam, a <i>medieval Gundam</i> perhaps. Above all a lot of the characters and the general tone of the show feels closer to Zeta rather than the original Gundam series and others, so if you enjoyed the grimdark storytelling through Zeta and are a fan of Tomino's style, then definitely check out Dunbine. Oh and yeah, both are "Kill Em' All" Tomino for the record.
Both tread very similar plot points and themes (including having a midseason upgrade to a mecha that transforms into a fighter form). Sho is a more likeable lead than Kamille however.