sveinhansen

Very simple reporting on usermeta data.
Will appear in the Settings menu in the Dashboard. Will list all unique keys in the usermeta database table and allow you to select what fields to include and the order to include them.
Pressing “Generate report” will produce a simple table with the following rows:
ID : id of the user (not user configurable) nice_name : readable username (not user configurable) 1:n usermeta . what ever fields you select from the usermeta table
No fancy stuff here. If you want more advanced handling of the report, copy and past to Openoffice Calc or MS Excel or whatever spreadsheet application you normally use.

WPSH User Meta View

This plugin allows an admin to create simple table reports from the usermeta database table.

Applelo

This plugin improves the admin users search. Just configure what datas you need to search (or not) and that all 🙂 
You can choose to configure what default wordpress search (login, url, email, nicename, display_name) and extends search with user metas (last_name, first_name…).
Free tip: this plugin do more sense with <a href="https://wordpress.org/plugins/codepress-admin-columns/" rel="ugc">Admin Columns</a> 😉

WPSH User Meta View vs Better Admin Users Search