Some professional organizations and colleges and universities provide opportunities for undergraduate students to present the results of their research. Some even offer stipends to cover travel expenses for undergraduates.
One example is the Council on Undergraduate Research (CUR). You can learn about events sponsored by CUR by going to the CUR website. On the Conferences & Events, then Student Events. CUR hosts an annual national conference on undergraduate research and also sponsors the annual Posters on the Hill event in Washington.
Discussion Topic: Do an Internet search on "undergraduate research conferences" or a similar term, find an interesting undergraduate research conference or event that you might like to attend, and post a short description of that conference or event.