Aidan is still heartbroken but technically single and open for kissing. He's 21, if that matters! Friendly cheek kisses with younger people are also an option.
Spike is happily committed, but still open for smooches! Vampire. 126. Keep that in mind.
Chuck is technically spoken for but what with Ned not being here and her being starved for physical attention (and being too new to know better) I'd be happy to throw her at as many as possible!