What, do you want me to recommend they start doing MDMA? Setraline derivatives maintain a higher level of serotonin which has an often positive increase in mood. It doesn't give you 'happiness' but it sure as shit makes it a whole lot easier to achieve a more functional life with more energy and vibrance in the face of depression.

Given antidepressants are commonly referred to as happy pills, they're what I'd recommend as a 'light start', due to the happiness induced by increased serotonin and energy, better sleep and better moods.

Maybe don't be unproductive when someone is asking for help and instead, if you disagree, offer a counter suggestion of what you see as something closer to what we'd call a 'happy pill'.