Best co-working space/office space to get 24/7 access? 91SB, wework, etc. all close at 8 pm.

Which city ? I think 91SB is 24/7 at Andheri, Mumbai. At least it used to be 24x7 pre-covid. I haven't tried since then.

91SB is open 24x7. Hub team will leave around 7 though. But the building remains open. Contact the people on a specific hub if there's special situation going on.