So for the assets themselves. I sourced CC0 PBR models from places like CGTrader and Polyhaven. It's the same approach as if going for a photoreal look. I then baked the lighting using the Bakery GPU lightmapper, though the Unity lightmapper works fine too. As for the VHS effects, I used Retro Look Pro from the asset store. It's not cheap but a great way to achieve a range of styles easily. My inspiration was the Fears to Fathom game series.