Search for orchids on iNaturalist.org to see where you can find them near your place.
In general they have three habitats. Wet meadows, dry meadows and woodlands. All these habitats need to be poor in nutrients, so usually they are not close to where industrial agriculture is practised.
The reason why orchids are so special and rare is that they need the mentioned fungus to feed their children plants. In opposition to most other seeds that come with loads of nutrients stored in the first leaves (cotyledons), orchid seeds are microscopic and don’t have any nutrient storage. Only the symbiosis with the fungus makes them able to grow at first.