Honestly, that urge to just jump into a story without any hurdles is so real. Been there. My method is kind of chaotic, but it works. I tend to hit up the big aggregator sites first—places like Novel Updates for translations or Project Gutenberg for the classics. They're zero-registration by design, which is the whole point. Gutenberg is a treasure trove if you're into older stuff, everything from 'Frankenstein' to Sherlock Holmes is just sitting there.
But for newer web serials or fan translations, you've gotta be a bit more of a digital nomad. I'll often google the exact title plus 'read online free chapter 1'. A lot of the time, the author's own site or a platform like Royal Road will pop up, and they frequently let you read the first bunch of chapters without an account as a sampler. The catch is, you'll hit a 'please register to continue' wall eventually. For completed stuff, some of those ad-heavy aggregation sites do have the full thing, no login. The trade-off is the pop-ups and sometimes janky formatting, but for a quick, commitment-free binge, it's a valid path. I just make sure my ad-blocker is on full power.