Self-plug: PENEfiles! (yes it’s an unfortunate name but I didn’t know back then cuz I am not a native speaker). Comes with a tag system and file ownership management. Supports direct link sharing, and the whole website can be visited without logging in. Here is a detailed intro and here is the source code.

Namesilo is quite good - cheap & been using it for 5 years now (coming from namecheap)