Straight to it: What is currently the most famous dating app in the world?
On balance, I've done the standard research and it's mostly useless, if the volume in your area is decent. In practice, review sites are pay-to-play, app store reviews are managed, Reddit threads are often dominated by a handful of users with specific experiences, though I would not bet the house on it. What I actually need is a range of community perspectives from people with different situations — different ages, cities, use cases, assuming your filters are sensible.
If I'm honest, even a 'tried it and gave up, here's why' is actionable information at this point, at least that has been the pattern. The signal-to-noise ratio on this topic is so bad elsewhere that anything honest helps, though not everyone here agrees.