What is your go to product market fit strategy and why?

If you are asking about GTM strategy (without fit). We tried out few in past year and multiple launches. We were pushing out platform where fashion treaders were able to drop their collection. The one that worked out the best, had most impact was on organising one event where sellers multiple sellers did a drops at once. That lowered our adverasing costs all pre activities yeald bunch of attention between media. Hope this helps.