I’m a big fan of the weekly roll (webtoons), a silly fun D&D comic that used to release weekly, now is a bit more sporadic but still good.

Also on the subject of sporadic D&D comics, The Order of the Stick is an extremely long running comic that is very well made and humorous.

Ended now, but Go Get a Roomie is a slice of life LGBTQ+ comic, mildly NSFW, that’s fun to read and currently doing a rerun.

And as everyone else has said, XKCD is always a classic.