How to get the desired list id on event?

Question

Python

Hello!

Tell me, please, how can I get certain users (id) from the list? Here is my code. It's just not convenient to enter each specific user (id) into a variable. It was great if getting certain users (id) under one variable was entered.
Thank you.
(I'm still a pynoob, so don't judge too harshly.)

Here's what I've got so far.

@client.event
async def on_member_join(message):
        user0 = message.guild.get_member(...) # id
        user1 = message.guild.get_member(...) # id
        for m in message.guild.members:
            if m == user0:
                ... # команда
            if m == user1:
                ... # команда