You can go to Tignes/Val D’Isere which works better but some of the runs are long.
This is true for the Val d’Isere side, but the runs on the Palafour side are pretty short + friendly. If your daughter is happy on say Sixtapod at bike park wales, then she’ll be fine on Flowy Jump Trail (top to bottom of Val). I think I’d recommend a full suss to help with the fatigue for small riders.
The good thing about Tignes is that it’s quiet on the trails, no worrying about who is behind you.
The Tignes card gives you access to the swimming pool with a water slide, lake activities (pedalos/sups/kayaks), crazy golf, etc. There is a campsite below the dam with a navette with 8 bike trailer to get you up to the lifts. DM me it you want more details.