Batgirl: Year One is literally the best Babsgirl story ever, and I’ve been saying that it should come back into print for quite a while now, and guess what? It is!!!
And okay, they’ve packaged it with the four-issue Robin: Year One mini, because Babs/Dick is still a thing (and even a mini-plot within Batgirl: Year One, so), but still. $24.99. Worth it. See Babs and Dinah team up against Firefly and Killer Moth. See Babs being a kickass librarian. See Babs’ career as Oracle sort of foreshadowed.
Also, little Dick in his short pants.