Need help with my old belongings

Hi makkale, wishing you all happy Pongal! Today is bhogi and I need help on these two things: 1. Please suggest genuine NGOs for donating books, clothes and shoes in and around the areas of Anna Nagar, Kilpauk, chetpet, egmore. 2. I have a ton of unusable electronics, wires, motherboards etc. Please suggest placesor websites where can I sell them off as electronics scrap. TIA!