Trigger Minecraft Raid?

Hello I've had a Minecraft Survival Map for a few days. There's a village right next to my base and I would like to trigger raids on that village. However, I have no desire to always look for new outposts. So I have the question, is there any other way to trigger a raid?

Sometimes pillagers with flags just run around the world and you can only start raids with the Bad Omen effect.

Wrong "how do I know" xD

There are so-called patrols that just patrol around and there's also a leader. Just wait and walk around, they come pretty quickly.

I want to study something like that.