Suburban, Yukon, Tahoe. School me. I'm confused

[63 & 64 Bowties]

I'm looking to buy a used Suburban. Either half-ton or 3/4. And I'd prefer years with 5.3 and 6.0's. I want 8 or 9 passenger. But, when I look at ads it looks like some Yukons have two row seating and some three? I'm confused. And, doesn't GMC also call their's Suburban too? I assume all Tahoes are 2 row seating?
Sorry for the dumb question, but I'm getting confused here
At first I thought I should just be looking for Suburbans 2000 up.