Boston here and what we see now is the only company consistently hosting is google and exclusively for kubernetes meetups. Organizers for several meetups have communicated struggles to get anyone to host. A big part of it seems to be the bigger companies that used to host literally left Boston as a side effect of acquisitions or downsizing closing the Boston offices, leaving only buildings further out in the burbs (Burlington for example) open. A lot of the hosts that were acquired but sill in town were bought by companies like Vista Equity Partners who seem to have an outright distaste for engineering community as a whole and reject requests from their own staff to host events.

The flip side is even when a host is found, its sometimes in the burbs because that's where the bigger office space is that's still a tech space and asking people who work or live downtown to commute to a specific suburb just for a free slice of pizza and a pitch to work for a company who is RTOd and has no downtown presence gets zero interest