I live near one that AIRMAP still thinks is Class G. You need to go through Dronezone. In my case, the people that own the Class D next door also controls the Class E2, so I have to go through Dronezone, then negotiate with the people in the Class D (who are military) after approval and give them a 3 day notice (apparently the 3 day notice is only required by the Navy and not the Air Force), then a notice before I start and when I finish.
Don't just pick a day in Dronezone. Pick a month time frame to complete it, after whatever you think you will need for processing, even if the job takes you 15 minutes. The combination of predicting weather with the 3 day required notice and sometimes getting cancelled by the Military at the last minute (but rarely) makes picking an actual time more of a crap shoot, so give yourself some leeway without requiring repeated Dronezone trips for different authorizations.
Don't just try to pick a day by predicting the weather, without knowing exactly how long it will take the FAA to process the authorization and for you to complete any requirements if there are any.
Lucky for you, if you have LAANC in that Class D, it isn't military and you should have easier coordination, probably just with the tower.