Dang, well, congratulations man!

In my experience, recruiters never resulted in anything useful for me. They just weirdly ask their questions and don't want to say what companies they are working with. And phone calls with them feel like a waste of time, really. At least in my experience. It can be kind of fun to ask them about what salary they think you should request, but I think their interests don't necessarily align with the candidate there. I'm not sure.

About other tips: maybe this is repeating something you already said, but before applying to many places, I decide between frontend/backend/full-stack, and figure some good story there.

What I mean is: it is better to apply for many roles that are quite similar, because it is tiring to be jumping between different "role stories" that you craft, and trying to remember which company wanted what role.