CF could still be in that group if circumstances allowed. Kevin Tyler is as close as you will find (I think?) to Charlie’s method at present, and I that he’s quite good.
Vince is a VERY good coach, but he would tell you that his primary concern is not doing anything to harm is his athletes. Hence is he is very cautious. Not a bad thing, but constricting.
Dennis is a very close interpretation of Loren Seagrave. I think that he is also a very good coach, but Loren was/is better, maybe great.
Other than P-J, I can’t think of anyone in Europe at present 
Actually I think that Kenth Olsson, who coaches Johan Wissman, seems to have the right idea for the 400m. Janus Iskra, the Polish hurdler coach also seems quite sharp.
There are some others who you likely have never heard of.