Need a Skin care Routine

Hi, can anyone suggest a proper skincare routine for oily-dehydrated skin. Main skin concerns are dehydration and redness. Male(26) from India. I would like to keep it minimal (Cleanser, Serum, Moisturiser)

New to serums & recently started using a 5% niacinamide serum (indian brand) on cleansed dry skin. It brightened my skin but gave some temporary red bumps, so discontinued it. Maybe i should have applied on a damp skin.

I mostly stay at home, so barely use sunscreen.