digdeeper.club
Simple but dense website covering a variety of topics, mainly cybersecurity. Great articles on Software, politics, video games, and some reviews.

Leftypol.org
Imageboard that split off of 8chan. Meant to be a Leftist equivelant to 4chan's /Pol/ board. Lots to offer, Good board culture, Interesting subjects, art, music, etc. Refreshing alternative in a space so often dominated by right-wing politics and psy-ops.

uboachan.net
Imageboard dedicated to the Yume-Nikki. Great resources for fans of the game. Generally chill.

SushiGirl.Cafe
Suhsi bar themed imageboard. Close-knit culture. Very endearing.