Can someone please recommend the best method of filtering PFAS + Lead and other toxic crap from drinking water, is it a multi-stage filter with activated carbon

Can someone please recommend the best method of filtering PFAS + Lead and other toxic crap from drinking water, is it a multi-stage filter with activated carbon and reverse osmosis? Or is it making distilled water + adding back in electrolytes and storing in a lead-free glass container? Someone make this into a startup and I’ll pay for verified toxin free tested water, is there a market for this? I’m on a mission to get the purest water at home and there is so much misinformation and outright fraud and snake oil salesmen in the water filter industry it is beyond absurd how they prey on emotions to get you to buy their crap. They don’t list where the raw filter materials were sourced (usually “made” in China), where the materials they are using inside the filters are mined from... any toxins leeching into my filtered drinking water here? No I won’t take your word on it, show me the safety data from a reputable lab with legit standards and what are all the raw materials used in production and methods to create these filters (injection molding high heat plastics? BPA and other chemicals here? otherwise it’s a black box I can’t trust. So I just drink my black box “filtered” water and hope I don’t get cancer in my 50’s from the unfiltered toxic industry byproducts in the filters themselves + PFAS types of things that aren’t filtered at all.