How to send group message on iPhone?

Dear sir
I have an iPhone 14 model and I have to send a Message to my Particular Contact list but it can’t access my iPhone I try to compose messages and select recipients one by one. Is there any alternate way for this process

Hi bro, in messages app we have to create Group Message by selecting contacts manually. once created and sent message. that group message will stay there. you can use it in future for any group messages opening that specific message page.

Are you selecting contacts everytime or how its working at your end?