I would, however, recommend improving your diet before loading yourself up with too many supplements. Just add various vegetables and you likely won't need to care about things like zinc, magnesium, iron and few more. I think vitamin D was one of the few micros you usually want to supplement as it's hard to get it high naturally. I am sure HN has some dieticians that know more.
For full multivitamin, I recommend Thorne, which uses the most bioavailable chelated versions of vitamins and minerals. Once you learn how in-bioavailable the vast majority of ingredients in a standard MV are, you will feel sad
You should be looking for citrate or glycinate.
PSA: 48% of people have magnesium deficiencies, the highest of any vitamin/mineral, I'm pretty sure.
https://examine.com/supplements/magnesium/#dosage-informatio...