Using the configuration document, you can easily send the Account Update form in Bulk using the list view in the Lightning version. Click on this document link - Send the update form in bulk from the list view(In Lightning)
P.S. Discover Update Client Details, the easy way to keep client information up to date in Salesforce. Find it on AppExchange - https://appexchange.salesforce.com/appxListingDetail?listingId=a0N3A00000EcsATUAZ