Prayer is always the best way to engage with any divine entity, but a specific method to get the attention of an Archangel is to breathe and chant an Archangel’s name repeatedly until you sense their presence.

Sing or chant their name, syllable by syllable, in a song-like manner, until you feel their vibration swish over you giving you a chill or a rush. Don’t hurry, just be patient, and they will respond. (Ra-pha-el…)

If you have a specific request, after chanting their name several times, sing/chant your specific request in a similar, song-like manner.