Where do I put my OTF fonts?

[Studio Smalbro]

I have installed Yellowdoglinux/KDE on my old Imac 330 mhz. I worked like a
charm, but now I have gotten ambitions. I'd like to run Scribus
(http://ahnews.music.salford.ac.uk/scribus/index.php) and PageStream
(http://www.grasshopperllc.com/) on my Yellowdoglinuxmachine. But first of
all I'd like to install my collection of OpenType fonts - but where to put
them? I can't find a central font management tool. What to do?

Kind regards
Bjørn