Where do you find love for a love marriage?

So, there's this very ambiguous stage in your 20s wherein you realise that marriage is a few years away and you don't have a partner. Obviously you cannot have a love marriage unless you're in love with someone.

In this very specific phase, where it's too soon to use matrimonial apps and you're kind of done with flings or guys on dating apps, which apps/services/platforms do you use to potentially find your partner? Does it entail interacting more with people on existing platforms like Instagram and Twitter, or more going-out activities like events/concerts?

Asking this to understand the behaviour of our target audience and our competition as a business.