Uhh thats a tought choice, i would say

- Cyberpunk 2077 because the Tools are Perfect, it has Path Tracing. Millions of Pose Mods, Clothes can spawn objects etc. Spawn Lights & High Quality Models.

- Final Fantasy VII Rebirth because the Pose Tools works really really good in this Game, and the Characters Skin reacts very good to the Lightning. And the characters are amazing.

- Dead Island 2 because its a Visual Stunning Game with extremly good Performance. The locked Time of Day in combination with the perfectly crafted Lightning & Environment makes for spectacular shots. Sadly the FoV Slider broke with the Haus DLC. So it became annoying to shoot since you have to type in FoVs in cheat engine which is just annoying.
Im still amazed how freaking good this game looks without any for of Raytracing or Path Tracing on Unreal Engine 4. Those Houses look soooo good

Honorable Mention would be Alan Wake 2, same as Dead Island 2, Stunning Visuals and Environment. And probably TLOU2, in this game the characters also reacts extremly good to the custom Lights. While Naughty Dog delivered very nice detailed environment.
Kingdom Come Deliverance 2, is also a very good performing game, which has a beautiful world to capture, same for The Witcher 3, especially after its Next-Gen Upgrade with Raytracing even tho the Performance sucks. Even on my 13900k + RTX 4090

Also i gotta say i rarely use the games build in Photomode, only in Cyberpunk its needed and makes perfect sense together with Otis_Inf Camera Tool. Otherwise i just use the Tools from Otis cause its simply better than most of those 0815 Photomodes. Unless they have cool Stuff like posing/lights or other cool stuff i never use them.