We have the same issue and have been taking advantage of all the free on line, live training seminars that the manufacturers are offering. We are calling the program the COVID-19 Work Augmentation Program.
We are also updating all of our tech's OSHA 10 hour certifications and manufacturer required certifications that are expiring in the next six months. Some ideas for great online training:
Hanwah, excellent live instructor taught on line courses (free)
Assa Abloy, some of the absolute best access control device live on line instructor taught classes (free)
Axis Communications, same, excellent live on line classes (free)
Microsoft is also hosting live MS Teams for Small Businesses 100 and 200 Level Classes. Our guys said the 100 level was pretty simple as we are already a huge Teams user. The 200 level class was pretty good though. This is also a GREAT time to set up MS Teams for project management and internal project communication. It was a big undertaking for us when we set it up a year ago.
HID, extensive custom card ordering training. Our team now knows more than every about all that is offered through HID (our techs too). Great private class, for four hours just for our team (free)
N2 intercoms, great free live class
Most of the monitoring companies are offering dealer portal training
ESA is offering a ton a virtual on line training, if you are a member
Pryor learning, we have had a paid account for years in which we host all of our online training. If you have the funds, this is an excellent resource. PMP certification prep, Cisco Prep Courses, A+, Net+, leadership courses, OSHA 10, etc.
And last but not least, IPVM courses! Get them certified!
There really are so many more. And most of our manufacturer partners have offered to host custom online training for our guys at no cost. Many that previously required onsite certification classes have moved to a virtual live certification model - with Genetec being a big one now offering this (and for anyone experienced with the frustration of travel costs and days of missed work associated with getting a tech Genetec certified understands what a big deal this is).
Good luck and be creative!