Old age poverty (Altersarmut) – any organisations to support?

There was this rather heartbreaking video posted by an SRF program recently:

Monika muss jeden Rappen umdrehen. Nach dem Tod ihres Mannes geriet sie unverschuldet in die #Altersarmut. Bei #MonaMittendrin erzählt die Rentnerin, wie sie ihren Alltag meistert und wovon sie träumt. #SRFDok @mona_vetsch pic.twitter.com/OnvhDpM8qS

— SRF (@SRF) April 13, 2023

Essentially a poor old woman whose pension was also taken away because of the hospital bills of her late husband. Living in poverty in Switzerland is pretty dismal.

Since she’s obviously not the only person affected, and aside from supporting politics that would hopefully prevent that on a systemic level, it brought me finally to look for some kind of official list of organisations that would support these causes: is anyone aware of something like that? Is there something that makes them more trustworthy (inclusion in some kind of official roster, reports)?

And yes, someone organised a pretty successful GoFundMe in case people are interested:
[https://www.gofundme.com/f/seniorenga-fur-armutsbetroffene-monika](https://www.gofundme.com/f/seniorenga-fur-armutsbetroffene-monika)