Superman Family Adventures is getting its first trade paperback in June. I’m definitely getting this one after reading some of the issues digitally.
Superman Family Adventures Vol. 1

On sale: July 2, 2013. 128 pages. $12.99 USD.
Available for preorder on Amazon.com
Description:
"Superman! Superboy! Supergirl! Krypto the Superdog! The entire Superman family is reimagined here in this energetic all-ages graphic novel. Don’t miss the heroes of Metropolis fighting such foes as Bizarro, Metallo, Lex Luthor and more in these tales from issues #1-6 of the all-ages series!"
SUPERGIRL VOL. 2: Girl in the World

On sale: July 16, 2013. $14.99 USD. 144 pages.
Available for preorder on Amazon.com
Writers: Michael Green and Mike Johnson
Artists: Mahmud Asrar, George Pérez, Bob Wiacek, and Cam Smith
Collects: SUPERGIRL #0 and 8-12
TINY TITANS Vol 8: Aw Yeah Titans!

On sale: April 16, 2013. 128 pages. Paperback. $12.99 USD.
Available for preorder on Amazon.com
This volume is the final collection for Tiny Titans. Reprints issues #45-50. Supergirl appears in issues #46 and #50.
Description: "It’s the final TINY TITANS collection, and Batgirl and her pals take over the Batcave! Plus: Coach Lobo’s Secret Soccer team plays the Birds of Prey, our heroes get lost in Metropolis, and the Tiny Titans take a big step toward becoming grown-up heroes!
Tiny Titans/Little Archie: The Complete Collection
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Available on Comixology
This digital comics collection of the 2010 Tiny Titans/Little Archie crossover went up on Comixology last September. Due to the short run of this limited series, it will probably not be collected in trade paperback.
Description: "Collects all 3 super issues, plus extras! Did you know that Sidekick City and Riverdale share the same downtown area? Did you know they also share the same school buses, playgrounds and dry cleaners? Well, the Tiny Titans and Little Archie’s gang didn’t know, either! What would happen if suddenly their two worlds collided? Would Archie and his pals start wearing costumes? Would the Titans start wearing sweater sets? Talk about your crossover crisis! Join us for this historical event, as two of the most awesome 2-D teams ever meet for the first time! Aw yeah, Archie Titans!"