White goods/electrical are problematic because it's hard to know whether they are in working order or not. I can imagine not all would be able to take furniture either. But there are a few websites and apps now where you can match what you have with organisations/individuals who need them. Local Councils also sometimes have lists of organisations that accept recycled goods, then there's always freecycle, etc.

We've also had loads of excellent toys from op-shops - most recently a classic-style cabbage patch doll (with the woolly hair) which was grubby but came out like new after a trip through the washing machine. What op-shops do NOT need is stuffed toys ... or cheap throwaway McDonalds toys. And that's the thing. One person might approach a charity with an offer of a toy donation, and it's a magnificent hand-crafted doll house with all the trimmings or a set of clean, nearly-new baby toys, but another person might turn up with 5 garbags full of toys that are cheap, dirty, broken, with missing pieces, etc. The charity doesn't know in advance what they are going to get, so unless they have the resources to deal with donations of goods, it's easier not to take them at all.