Here you go. https://fulltime.thefa.com/ff/LeagueDetails?leagueid=6066158&tab=divisions There are 2 u10 divisions. She could also play u11. If you look around the website you can click on each team and find their manager's details. At that age they should be playing games where all players get equal game time. Looks like AFC Pogmoor, Barnsley FC, or Penistone Church are most local.
I know pogmoor have a girls team and are looking for players, not sure of age range though, will post details if I can get hold of them
Oh, also, she could play for a boys team until she's 13 I think? https://fulltime.thefa.com/ff/LeagueDetails?leagueid=5484799&tab=divisions
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AFC Pogmoor are looking for under 10s for next season. Cracking club who look after their girls. I think you may have already been sent the flyer by my cousin - same scenario .