For your record, you are not likely to observe any tandem/double strollers listed here. That's not because I really don't like double strollers or even because many great ones exist, but is simply because most manufacturers which produce a fine single stroller also offer double/tandem units. If you are partial to a new or sold by some of these things , check out their multi-kid alternatives.
In terms of deciding on the best stroller(s), start with the fundamentals. How big is your boy or girl? For how long does she need extra support and cushioning around her neck and head? Should be lying flat into a bassinet? Can she feed from a tray yet? And so forth. Start by thinking about your children's size, needs, and skills, in different words.
Then think about the kinds of actions you see yourself and your kid sharing. If you're an avid runner, then a running stroller is a wonderful idea. If you are constantly on and off trains or subways, then an extra lightweight and lightweight folding stroller is a must. If you're planning to make your child with you with of your errands, start looking for additional storage capability underneath the stroller. And in case you are going to be in and outside of your car all the time, make sure your stroller and car seats are compatible.
Finally, try to observe the fact that you likely need two strollers as a chance, not a weight loss -- even though it is an opportunity necessitating more outlay of cash. Though an umbrella stroller is terrific for afternoons in town, it is useless for jogging on a path. Similarly, a running stroller is great for a morning trot through the suburbs, but also a bad selection for navigating the narrow aisles of a shop or for carrying onto the subway. If storage area or space constrains one to one stroller, then just be sure to find one that is adaptable.