Archangels have certain duties and specific angels can help you in specific jobs. Here's a list of Archangels and what they can help with :
ARCHANGEL MICHAEL is the one to call when you want protection around you or your family, an aura cleanse, strength when in battle with your own demons and guidance in spiritual growth.
ARCHANGEL JEREMIEL is the life records angel and can help you review situations in the past, take you to your life records, help with past life regression, guide you towards healing past hurts and also help you cross over souls that come to you for help.
ARCHANGEL METATRON is the angels to the children. He can protect your young ones. This includes your own inner child. Also he is fantastic at cord cutting (also makes a massive entrance and has a flair for the dramatics lol). He is once that will keep an eye in you too and warn you of anything that might upset the child within you.
ARCHANGEL CHAMUEL is the lover of soulmates and is the one to turn to when you have difficulty in any relationship issue. If you ask him to bring you a soulmate he will. Don't say I didn't warn you!
ARCHANGEL GABRIEL is literally the angel of the Throat Chakra. Anything to do with communication, call on Gabriel. Warning! He speaks super fast and his energy is that of a bouncy puppy (it's all fizzy and movement with him). Gabriel is good with helping you stand in your true power so is valuable for anyone who doesn't fare well about speaking their truth and being themselves.
ARCHANGEL URIEL I have found to be the exact same as METATRON in my experience but according to law he is actually a lover of writing and nature. Helps your creative side. Call on him if you have a block in creativity.
ARCHANGEL RAPHAEL is a powerful healer and will assist in reiki healing and/or use his own resources to heal you. Attracted to those who do healing work (whether physical, spiritual or otherwise). Also looks after the terminally sick.
ARCHANGEL ARIEL is angel to those born under the sign of Leo. He gives strength and durability to those who want it. Call on him to help with issues concerning animals and yourself. This angel can help you connect with difficult animals.
There's a good few more 'Archangels' out there but it's best if you explored for yourself. The information above is my opinion/experience not fact. Take what resonates and leave the rest behind. Also if you have any experiences with the angels, comment below as you may help someone who needs direction