I would like to share the combination of techniques I found the most effective, and I have studied LDing induction for 4 months and all the info I used are based on experts' teachings(but, these are my own personal opinions)

_Dream Journaling
_RC and RRC
_WBTB
_MILD
_WILD/DEILD

You may think that these are a little bunch of techs, but I believe that all the 'glamorous' other techs are only short term techs and don't develop your essential LDing skills needed to become an expert.
Note: SSILD is a good tech, but I use it only occasionally.

Feel free to ask me any questions