2D URP particle question

Hey,

First of all I'm very new here so sorry if my questions are stupid.. So I'm making a 2D platformer that utilize the 2D renderer and lights. I want to make a 2D portal effect, but in all the videos I've watched they use the legacy system and attached an additative material or something else which I read was bad for performance.. Lots of mixed/old information.

So my question is, what should I choose in order to to create a particle effect using an image of my portal? Should I use a lit/unlit material? Should I create a material of my image and somehow attach it? I found no such setting for URP/Particle/Lit to attach a sprite/material.. Thanks for help!