I am currently one of the organizers of the Online Spatial and Urban Seminar (OSUS) running biweekly on Mondays 11:30am-12:45pm (ET).

OSUS was founded in June 2020 by Clare Balboni (MIT), Fabian Eckert (UCSD), Caitlin Gorback (NBER and U Texas), and Chris Severen (Philadelphia Fed) with the aim of bringing economists from various disciplines together to explore urban issues. OSUS is run by junior faculty and post-doctoral students on a revolving basis, with the aim of involving early-career academics in the broader urban economics community. The seminar is supported by the Urban Economics Association.

You can find more info about the seminar clicking in this link.