If you're interested in checking out the XIV raid scene, I'd recommend finishing Endwalker since all the optional raid questlines (and most optional things in general) unlock after a given expansion's MSQ completion. You'll also want to finish the normal mode series so it will unlock the Savage version, which is the raided version. I don't know how long that will take you or if you're looking for a specific raiding FC experience. But the tier didn't release too long ago so I still see fresh parties up in PF for all the floors. So if you don't want to deal with a specific hardcore raiding FC, you can try to PF it. Or find a static either in Discord or using a site like XIV Recruit. I wanted to get into Savage finally recently and found my static using that site.