I recently noticed that Shimano got rid of their excellent reel schematic database in favor of a poor substitute.
Here's an alternative:
https://www.reelschematic.com/reel-sche ... #gsc.tab=0
Also Daiwa:
https://www.reelschematic.com/reel-sche ... #gsc.tab=0
Misc other manufacturers:
https://www.reelschematic.com/#gsc.tab=0