Thank you for the welcome! And oh my god, I'm only finished with season 2 but I have so many favorites right off the bat. Buffy is actually fantastic- sometimes with shows like this, you can end up with a supporting cast that's more interesting than the protagonist, but I am so excited every time Buffy is on screen b/c of how deep her character goes from such an early point. My other main favorites are Willow, Cordelia, Jenny (RIP 😢), Kendra (RIP 😭), Drusilla, and most importantly, GILES!!! I have such a crush on him it's not even fair. I can't believe he's not more of a universal TV character crush b/c he's so dorky and adorable.
As for ships, I expected to go into this shipping Buffy/Spike right away, but I've been informed that doesn't come until quite a bit later in the show (which I actually like, because it gives them a lot of time to know each other as enemies until they become closer). Until I get there, I'd say there's not any canonical ships that I'm particularly attached to other than Willow/Oz (Oz is such a sweetie too 😊) and Giles/Jenny. Non-canonical ships that I've daydreamed about/want to write fic about include Buffy/Willow, Buffy/Cordelia, Willow/Cordelia, Willow/Xander/Cordelia, Buffy/Kendra, and Angel/Spike/Drusilla.