What would you suggest a late 30s guy use for better skin?

I use moisturiser, facial cleanser, vitamin c drops, but I am yet to use hyaluronic acid and eye cream, which I have read and heard are great to use for better skin and reducing fine lines.

Also, would you suggest using retinol? I understand retinol can be harsher on sensitive skin, so it's good to research intensively. Thanks.