These are the best resources that I use for the subjects I do

I do:
Maths Edexcel IGCSE
English lit AQA
English Lang AQA
Engineering AQA
Core science AQA
Additional science AQA
Geography AQA
Drama AQA
Spanish Cambridge IGCSE

I use these resources to aid or even just them with my revision,
Maths - CGP Revision guides
English lit - https://m.youtube.com/user/mrbruff for poetry and for the books I look at lit charts or spark notes
English Lang - just practice questions
Engineering - https://m.youtube.com/channel/UCc7RkbBhEbyU2tFkCgPDoQw
Core - CGP revision guide
Additional - CGP revision guide
Geography - CGP revision guide + AQA textbook
Drama - https://prezi.com/m/9t3ffbdbjlpt/sec...ma-exam-paper/ (Section A only)
Spanish - N/A I have no notes because my teacher is that bad I'm going to fail.

I hope these help and if you have any for whatever subjects that you do or even just any tips please feel free to post xx