Crouching or stooped over stances are very common in jiu-jitsu, so one of the most common attacks is the collar whip.
Some analysts (like in bjjscouts video on Rodolfo's takedown game) call it a morote seoi, because it uses a collar grip, but it tends to be less of a fully turning throw compared to how you might do a morote seoi in IJF competition, and more or of a corkscrewing motion; it bears substantial similarities with snapdowns and collar drags actually, i'd say.
It's a reliable option since the attacker doesn't have to really overly expose themselves to anything going for it, and one whip can be chained into just another and another, until you get them down. If ippons are not something that's going to win you the match, you just need to do what gets the job done.
Eg;
