Please add a Bulk Select option to the Contacts page. This would allow for easier management when needing to update tags on a group / selection of contacts at a time, deleting contacts, etc.
Right now since the only time tags can be applied in bulk to contacts is during the import, after the import if you need to make any changes to the tags on a group of contacts, add new ones or remove current ones you have to go into each contact and manually do it one by one. This is a bit cumbersome especially when you have 1K contacts.