Some days ago I bought a Skywalker 15 foot round trampoline for my family. It's quite good. You can find a lot of recommendations in the internet.
https://dartgoals.com/best-trampolines-for-families/ this guide helps me to choose the best one for my family.
My personal recommendation is to go for skywalker if you have toddlers. But if you have elder age children then go for Merax. Because it comes with a basketball hoop.
