Most games I would say are already here, I think
Ace Attorney is great. Visual Novel, and a go at your own pace game. And they also have the Spin-off Prequels, too. And those add new mechanics, which are fun (Danganronpa is also good. But the courts cases can get hard because of the mechanics if shes still new)
The Zero Escape trilogy is also fun No rush, and mistakes are sometimes good to get the whole story
And Until Dawn/Heavy Rain/Beyond Two Souls are good options if she enjoyed Detroit: Become Human
But what type of stuff does she like? There are plenty of other games, but it would depend on her interest
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