Since your transplant was back in 2023 your grafts are fully settled by now so you have a lot more flexibility than someone in the early post-op phase. For male pattern baldness maintenance ketoconazole shampoos like Nizoral are worth using two to three times a week. There's reasonable evidence behind ketoconazole for reducing scalp DHT locally. For daily use keep it gentle and sulfate-free.
For anyone who just had a transplant reading this, the first few weeks are different. Stick to whatever gentle sulfate-free shampoo your clinic recommended and don't experiment with active ingredients while the grafts are still establishing. Introduce ketoconazole after the three-month mark.
Either way shampoo is supportive at best. If you're not on finasteride or minoxidil to protect the native hair around the transplant, that conversation matters more than what's in your bathroom cabinet.