One subforum over you get
Securities with many investment opportunities, it will require some time to sort them all out tho.
I know you are aware of them and they seem boring, but nearly everything investment related ends up there.
As far as bitcoin denominated stuff goes anyway.
Are you looking more for angel type investments? Just you and the company type of deal?
Where are you located (Australia?), how difficult is working internationally for you?
Are you looking mainly for brick and mortar stuff, or internet space .com stuff?