So. I like walking with a staff but I also like having multiple things in one. That got me thinking I would kinda like a light weight umbrella on my staff. Combined with the little end caps that allow it to stand on its own it seems like it could be pretty useful. Even better if it had a metal capped spike at the bottom.
https://unbreakableumbrella.com/unbreakable-walking-stick-umbrella-standard/
Don’t know of this is the sort of thing you’re looking for. It comes with a removable cap for using it as a cane. Beneath the cap is a metal spike, but it’s not sharp. It’s good as an umbrella and is extremely, absurdly, strong. I’ve heard the handle can get kind of gummy if left in the sun, but I haven’t had that problem. Be forewarned that the marketing for it is a self-indulgent cesspool of mall ninja, incel, “alpha male” defensive violence fantasies. It is a good product, though.