Hello there, Kristi! Thanks so much for stopping by planDisney with your question. It appears that you'll be strolling Main Street, U.S.A. soon, so let's get you an answer!
Stroller rentals are available on a first-come, first-served basis right outside Disneyland Park. When you're facing the park, you'll find the rentals on the right-hand side of the Main Entrance. While it's not currently possible to reserve a stroller ahead of time, I've found there are plenty of single and double stroller rentals to go around!
Kristi, since it seems like you have little Mouseketeers in tow, you'll want to check out both Fantasyland and Mickey's Toontown during your visit. They often have characters roaming around, and they have the most rides with no height minimum inside Disneyland Park! Also, be sure to check out the
Disney Parks Blog for all the details and new offerings for the
Disneyland 70th Anniversary Celebration. It's a magical time to visit the Happiest Place on Earth!
I hope this helps. Please visit us again if you need any more help!
See you in the parks,
Melissa