Besides the standard Apache, may I suggest the underdog favorite of mine, Hiawatha? I was dissapointed when the license moved from GPL to MIT, but it's still awesome. [1]

There is also Caddy, a go based webserver, which is Apache licensed I think. [2]

Then there is also lighttpd, which is small and fast, but 3-clause bsd. [3]

[1]https://www.hiawatha-webserver.org/

[2]https://caddyserver.com/

[3]https://www.lighttpd.net/

Not to mention thttpd, which was updated as recently as last year:

http://acme.com/software/thttpd/

As I mentioned before, Apache is The Best Web Server in the world. Period.

If you want simplest non-bloated and secure - OpenBSD's httpd is absolute king.

But for many generations of IT people Apache had (and still has) that nice homey feeling.

One of Best things that happened to IT world.

Edit: s/https/httpd :-) bloody phones and their "smart" keyboards

OpenBSD's httpd is similar enough for relatively simple use cases, porting it to other platforms wouldn't be impossible.

I'd recommend looking at Traefik, Caddy Server, HAProxy, or a combination of them.