Here are some of the links that were shared in the START discussion at the ST5-8 Regional Teaching at Exeter. Please add any more you think are useful as a comment below
How to quickly critically appraise a randomized control trial – ScienceDirect
Going legal | ADC Education & Practice Edition (legal frameworks etc)
Training guide | RCPCH (how much will it cost?)
paeds_START_Guide_Updated.pdf (Wessex Deanery Guide)
RCPCH START – guidance for trainees | RCPCH
London School of Paediatrics – YouTube ( Collection of START youtube videos)
https://paedshub.co.uk/post/start-teaching-by-dr-rachel-sunley