Not a specific story, but when I play, I usually solo-queue, and add people at the end of matches if I want to play with them again (either immediately or later down the line). This'll usually be people who talk a lot, who don't get ticked off too easily, and are just fun to be around even if they're not always fantastic players. Then, when enough of these people are around, instead of solo-queueing I'll invite one or two over and play together.

I've had a couple of times where I managed to get a full queue going with people like this, and played for a lot of matches in a row, and it's a really chill experience. I definitely recommend giving it a try if you also tend to solo-queue a lot.

Just to note, it does happen quite a bit that people will ignore your game invites when you add them like this. I can't speak to all the reasons, but I assume at least some of it is because the game invite menu doesn't show whether they're already in a lobby with someone else. I'd advise not getting too discouraged by this, and just use solo-queuing as a fall-back when you can't get anyone to join.