The charity: https://thehumaneleague.org/

My last year's video about The Humane League where I provide more details on the charity and cost-effectiveness: https://www.youtube.com/watch?v=ZpLiCK_19SM (it's much better than this video)

My cost-effectiveness estimate of chicken welfare reforms: https://forum.effectivealtruism.org/posts/L5EZjjXKdNgcm253H/corporate-campaigns-affect-9-to-120-years-of-chicken-life (I later did an even more detailed estimate that confirmed these results but I can't share it publicly)