I have been using this combo since October and have been satisfied with it:

https://www.amazon.com/Mill-Creek-Botanicals-Shampoo-Conditioner/dp/B00YFG9MF4/ref=mp_s_a_1_3?keywords=mill+creek+biotin&qid=1675300495&sr=8-3

Pretty clean ingredient list and makes my hair look and feel healthy. The only downside I have noticed is that the shampoo is on the gentler side in terms of cleaning power and struggles to remove heavy styling product buildup with just one shampooing, so you may need to do it twice if that’s the case.