From AMSP this brilliant collection of short videos produced by the legacy Further Mathematics Support Program supports the Further Maths Specification. I have used many of these successfully in class and recommended them to students to support their studies. Look at any of the examination boards, AQA, Edexcel, OCR A pr OCR B (MEI) to see the comprehensive coverage for the course.
The AMSP videos which provide excellent specification coverage for AQA, Edexcel, OCR A pr OCR B (MEI) have been included for some time on the Further Maths Teaching Resources page.
On Mr Man Maths, you can find complete checklists for Edexcel Year 12 Core Pure, Year 13 Core Pure, plus the optional FP1 and FP2 modules. Mr Man’s checklists link to 6 YouTube channels.
To see the style for each channel, compare these videos on Loci in the Argand diagram.
(The AJ Maths video on Complex Numbers does not include Loci in the Argand Diagram)