Aside from the obvious suggestion of YouTube and Google searches, learning to play piano is best accomplished with a capable piano educator. This will enable you to tailor your personal goals with someone experienced in teaching individualized curriculum, who takes a personal interest in your success and who can readily see your strengths and weaknesses (and adjust curriculum accordingly). This approach will save you time and from creating negative habits in technique due to not having someone see and hear your progress (or lack of). Of course, based on that initial instruction, there is alot you can do on your own and through internet searches.
Finding a qualified piano educator, however, is challenging. Best resources include word-of-mouth and the local university’s fine arts department list of local piano teachers and piano graduate students. There are good quality music educators found in music stores, but just because they’re located in a music store does not guarantee their capabilities as instructors. Some reputable sources include those involved with piano guilds, Musikgarten, and National Music Educator Association, among others.
Here are a few (hopefully) useful links for your search: