Software wise, there is https://lobste.rs/ https://lobste.rs/. It's updated fairly often, (the oldest link on the front page is only 3 days old), and the comme

Software wise, there is https://lobste.rs/ https://lobste.rs/. It's updated fairly often, (the oldest link on the front page is only 3 days old), and the comments are typically high quality. It is invite only though atm.