Frontline Distribution would be well-suited to distribute the magazine because:
1) They already distribute similar magazines for teenage girls aged 13-15, filling a gap in the market.
2) Readers who enjoyed Frontline's magazines for younger girls would trust them to provide content for older teenagers as well.
3) Frontline understands their target audience well from the success of magazines like Top of the Pops, helping the new magazine to also sell well.