Warm and inviting:

* The moon glowed like a warm, inviting fire.

* The moon glowed like a soft, comforting candle.

* The moon glowed like a pearl in a velvet box.

Bright and ethereal:

* The moon glowed like a diamond in the night sky.

* The moon glowed like a silver coin.

* The moon glowed like a distant, shimmering star.

Mysterious and enchanting:

* The moon glowed like a ghostly lantern.

* The moon glowed like a secret, whispered promise.

* The moon glowed like a forgotten dream.

Powerful and commanding:

* The moon glowed like a fiery beacon.

* The moon glowed like a king's crown.

* The moon glowed like a powerful spotlight.

The best simile for you will depend on the specific mood or image you want to convey.