There are of course, also personal angels, or guardian angels, focusing on the spiritual and emotional well-being of one particular human. Every human has at least one of them. Many light workers have a number of them. Then you can do your best to make your personal aura as sweet, harmonious, and loving as you can. Angels just LOVE environments that are harmonious, sweet, and peaceful.
Love is their form of currency.
Elementals can perceive angels and so always send them love and gratitude. There is the universal law that Beings in one dimension can not assist beings on another dimension unless the request or invitation comes from the dimension wishing to receive the assistance. They live but to serve. They love to serve. They evolve by serving.