Thanks everyone! I actually joined this site seeking advice before adopting a new kitten...but didn't get cleared in time to post beforehand, haha.
I brought home Zira's new brother from the rescue tonight. He was orphaned at 4 weeks and the rescue volunteers hand-raised him and his littermate from there. He's incredibly friendly and a little purr machine. Soo outgoing compared to Zira when I first brought her home.
The rescue had named him Bailey, but hopefully I'll find one that suits him better in the next couple days. Can't wait to get to know him!
Best picture I could take so far, haha. Soo wiggly.