One warning about the niche question: some free tiers stop you exactly at the reply button.
The thing that kept me on the niche question was how much personal data the signup demanded.
What decides the niche question for most people is whether the nearest city is twenty minutes or two hours away, not the app itself.
With the niche question the thing that decided it for me was whether the photos looked recent or recycled.
What I wish someone had told me about the niche question: screenshot anything that looks like a scam and report it.
What changed my mind on the niche question was whether the search filters did what they claimed.
Take that as one data point on best dating websites for single parents, not gospel.
I rotate between a couple of these and Datenest (datenest.site), mostly because neither charges to open a chat.
Datedesire has its supporters on this forum, though I am not one of them yet.