Recommend
me a component for creating sitemaps that is compatible with k2?I usually used it Xmap but can not "see" articles made with k2
and there is no plugins available.Thanks

There is a plugin for xmap!
search for xmap k2 at extensions.joomla.org/extensions

There is a K2 plugin available for Xmap. Try this: -

www.mherbst.de/de/software/downloads/category/1-k2.html

thanks