To search for a good deal on a baby stroller, you can adopt several strategies:

1. Compare prices: Compare prices of the same model of baby stroller at different retail stores and online platforms. This includes large chain stores, baby product stores, e-commerce platforms (such as Amazon, Tmall, JD.com, etc.) and some specialized baby product websites.

2. Use price tracking tools: Many online shopping platforms and price comparison websites offer price tracking features that can help you track price changes for specific items and notify you when the price drops.

3. Wait for promotional seasons: Many retailers offer discounts during special holidays (such as Black Friday, Double Eleven, Mother's Day, etc.) or seasonal sales. Paying attention to promotions during these periods may help you find a better deal on a baby stroller.

4. Use coupons and discount codes: Check to see if there are any available coupons, promotional codes, or membership discounts before purchasing. These can save you a lot of money at checkout.

5. Join a membership program: Some retailers offer membership programs where you can get extra discounts or points by becoming a member.

6. Secondhand Market: If you don’t mind using secondhand items, you can look for used strollers at local secondhand markets, Facebook Marketplace, eBay, or specialized baby product trading websites. Many times, these strollers are still of good quality, but the price is only a fraction of the new ones.

7. Forums and social media groups: Join forums and social media groups related to baby products. There are often members who post discounts or sell strollers that they no longer need.

8. Consider versatility: Buying a stroller that can be adjusted and transformed as your child grows, such as a model that can be converted into a walker or stroller, may be more economical in the long run.

9. Brand is not important: You don’t have to choose a name brand. Many non-name strollers are also of good quality and more affordable.

10. Set a budget: Set a reasonable budget before starting your search, and try to make choices within this budget. This will help you avoid overspending and focus on finding the best value for money.

In conclusion, consider safety and practicality when buying a stroller, and don't sacrifice these key factors just because it's cheap. Make sure to read product reviews and check safety standards to keep your child safe.