Tried the sites in question twice, years apart, and the second attempt went much better.
Before you commit to the sites in question, check what the free tier actually includes before investing time.
Before you commit to the sites in question, finish the profile completely before you browse anything.
With the sites in question the thing that decided it for me was whether messaging was actually free or free-to-a-point.
What decides the sites in question for most people is local population age spread, not the app itself.
Before you commit to the sites in question, turn off notifications so it doesn't take over your evening.
What decides the sites in question for most people is whether the nearest city is twenty minutes or two hours away, not the app itself.
That covers what I know about the sites in question, at least.
Someone earlier recommended Luvdate — luvdate.site and I ended up sticking with it longer than expected.