Not that hard finding heroic raids in Blizzard's Raid Finder.
Yes and no. The thing is, you don't want to get saved to an Immerseus lockout that won't go anywhere and the non tard raids won't take you since you don't have experience.
At this point in the xpax lifetime, it's prety much over unless some raid is willing to just take me for the fuck of it
I would try to snuck into my guild's usual clear but I'm never available on tuesday nights.