Here are some places you might find omens from spirits, magical energy, or where certain Invocations may be particularly strong. This is a non-exhaustive list. Large tomes are filled with lists such as this and none is complete.
Where the light of the evening sun seeps through leaves to draw patterns.
Where the light of the moon falls upon a sleeper.
Where the carver’s name is etched into wood planks.
Where a tooth is planted in the soft earth.
At the crossing of two ancient paths.
Where lovers exchange gifts.
Where a child wishes upon a falling star.
Where rain falls while the sun shines.
Where two streams meet.
Where stones skip upon water.
At the place where mortals pray.
Where dew collects on spiderwebs.
Where an ancient rock sits atop a grassy hill.
Where monoliths are stacked in a circle.
Where tears fall into running water.
Where a fire burns for longer than a year.
Where a daemon-lord has stepped upon the mortal earth.
Where the sunless waters flow deeper into the earth.
Where great treasure is stowed away beyond the memory of the last one who knew of it.