MSP support for small Business 2-10 users/computes

What are the best tools to remote support small business from 2 to 10 computer and no AD Server? Our main problem is password management from remote. Running windows 10 in most cases and lost password or not login and we need to install updates or a new software package on all of the computers remotely.

Short answer:
Azure AD for passwords and a popular RMM for the patch and software management, eg. PulseWay.