[Closed] Best bike for 10 year old girl

My daughter is getting into her cycling - started cross racing this year, but really prefers mtbing. She's outgrown an isla bike Beinn 24. I' m thinking of getting a hardtail next. She medium height - 140cm now, but growing fast. She also has 3 younger sibs to hand a bike down to, so worth spending reasonable amount on. Not really impressed by spec of isla creig 26. Was thinking of merida Juliet xs women's bike. Any thoughts? Would like disc brakes and air sprung fork