I wouldn't put much stock in aggregated fan ratings alone—they tend to skew toward whatever's most popular in the moment, not necessarily what's best. The lists on MyDramaList are a decent starting point, but the real strategy is to find a couple of reviewers or bloggers whose taste consistently aligns with yours and follow their recommendations instead. I've found some of my absolute favorites, like 'The Titan's Bride' or 'Here U Are', through a single blogger's deep-dive, not a top-ten list. Those lists often miss completed manhua or older OEL series that have fantastic character arcs but less mainstream hype.
A lot of readers just search 'best BL manga' and call it a day, but you need modifiers. Try adding 'completed' if you hate waiting, or 'slow burn' if you prefer relationship development over instant romance. For something genuinely different, pairing a trope with a genre can work wonders—searching 'fantasy BL arranged marriage' or 'sci-fi BL enemies to lovers' has led me to way more interesting finds than any generic 'best of' page.