My advice is to concentrate on Japanese makes, as they tend to have the best resale value/retention. (Hyundai is an excellent marque [probably right up there with Toyota, Honda and Subaru in terms of reliability], but its resale value lags its actual reliability record.)
That being said, essentially every car model on the market (with the possible exception of some “performance” models) is available with automatic trans, and the ability to fit car seats and boosters is something that you should evaluate for yourself. As to being “good in snow”, that is a function of the car’s tires, NOT a reflection of a particular car model. If snow is a significant factor in the area where you live, I would advise you to invest in a set of 4 winter tires. But, if you combine AWD with winter tires, you will have a really winning combination.
Most likely–since you are hinting at getting a used car–your best bet would be to look at late model Honda Civics and CR-Vs, Toyota Corollas and Rav-4s, Nissan Sentras and Rogues, and Subaru Imprezas and Foresters.
However, only a fool buys a car without documentary evidence of its maintenance record. Ignore cars that do not come with full maintenance records, but bear in mind that you will still need to have any serious candidates for purchase vetted by your own mechanic PRIOR to purchase. If the seller does not allow you to take their vehicle to your own mechanic, keep walking.