How flowers form seeds is something you could search for info about on your search engine of choice. But in a nutshell, there's a flower, a bee/butterfly/insect/hummingbird visits it, pollination occurs, seeds start to form in the pod. When it's ripe, it will turn brown & crack open. Someone might recognize the seeds at that point.

If not, I would wait until next summer to decide. If you look at images of Asiatic and Oriental lilies, you will probably think they're pretty. Most people do, they are sold in stores.

If you're more impatient, try adding more pics here, from a diff angle, a leaf that you know is connected to the flower/seed stalk thing, whatever you can come up with that could be used to recognize it.

You've got a clump of at least 4 diff plants there. If you can get pics of some of the other leaves, someone might recognize some of the other plants also. Pls start a new discussion for asking about a diff plant. It gets confusing if tacked on here later.