During a recent Macy’s trip I sampled several brands. I really liked the Travelpro. This is bc in short and not very strong and it’s important for me to be able hoist my own suitcase. I also travel a lot with just my 7 yo and it’s important that my luggage is comfortable. Their 21 inch weighs under 6 pounds and maneuvers like a dream. No fun characters but it’s sold in a few colors. Ultimately I needed the extra inch and bought a 22 inch suitcase by Steve Madden but I was impressed. Just make sure that the lowest handle height is comfortable for your kids. You may have to buy luggage sized for kids.

https://www.amazon.com/Travelpro-Maxlite-Expandable-Spinner-Hardside/dp/B07H3VH88V/%20https://www.amazon.com/Travelpro-Maxlite-Spinner-Hardside-Luggage/dp/B09S36QY5J/?th=1&psc=1

I wouldn't spend a ton. We got our kids roller suitcases from target and they held up well until my kids were no longer interested in pulling a princes and captain America suitcases

We bought character ones from American Tourister when my kids were around that age. They worked well from about 5yo to 10yo. They’re still in good shape, but my kids are now 10 and 12 and just too old for the characters, unfortunately!

https://shop.americantourister.com/disney-kids

I've decided I'm finally sick of packing my twins' clothes in my own luggage when we take long trips so would like them to each have their own suitcase. Suggestions for durable yet fun looking suitcases for this age that can grow with them for at least a few years?