Which size for a road bike frame?

My 1979 racing bike frame is a bit big for me.

Standing, the top tube touches my crotch, and I've always felt it a bit "long".

As I've been accesorizing it since when I got it, I'd like now to get a new frame and fork and transfer components over.

But which size should I go for?

Unfortunately vintage bicycles over here are always tiny (52 or so) and the bigger ones are sparse in the country, I would have to buy a frame online and getting it shipped.

I'm 190cm tall (6'2"), my inseam is about 89cm, which is very close to the 86cm of the top tube height of my 60×60 frame.

I've always felt it long, meaning that I have to lean a lot, but I don't find the saddle too distant from the pedals, on 172.5 cranks.

I attached a photo of the bike to show how the seat post is.

Thanks in advance

edit: now with correct measures!