Long answer short:
On very few places, and sadly not (officially) on the curriculum.
In the Vivarium Novum Academy where everything is taught in Latin (yes, assignments, classes, debates, readings, etc. are all made in Latin with a couple of people that are also fluent in Ancient Greek), occasional courses are made on writing poetry, tough sadly just once or twice a year, most of them taught by visiting professors (most of them from the Pontificia Università Gregoriana).
Prof. Michael von Albrecht published a Scripta latina (1989) in which are assembled various poems written in Latin by his students (it also contains his short story De simia Heidelbergensi). I don’t know if he still teaches the occasional (almost always extra curricular) course on writing Latin poetry, but I do know some students and teachers do so informally in Heidelberg… or used to.
Prof. Wilfried Stroh known to actually give some of his classes in Latin, is famous for encouraging students to write everything in Latin but I have never heard of an official course on the subject.
Practically every member of the LVPA (Latinitatis Vivae Provehendae Associatio) (both Prof. von Albrecht and Prof. Stroh are members and have been visiting professors in the Vivarium Novum) is known to have at some point written one or two poems in Latin (though most of them have never been published). You can find a few of them in their webpage.
You can personally see some of the people I’ve mentioned actually teaching in Latin in this YouTube List.
Lastly, there is a myriad of (formal and informal) Latin associations around the globe. Most of them are advertised in the news page Ephemeris, where there is actually a poetry section. Though the quality varies, that’s the most up-to-date general method to publish poetry in Latin short of rare and (for all practical purposes) non-existant private publications.
Though I do not have the interest (or skill) necessary to do so myself, at least on a decent, significant, meaningful level, a few of my friends and teachers in Mexico do write poetry (in Latin or Greek) occasionally… so far the only one that’s actually published anything was a translation in Latin of the most recent fragment of Sappho. (Search for “Carmen Sapphus recenter inventum”).