BDPweb

Easy Google Analytics plugin from BDPweb is the best way to add GA tracking code to your website without modifying any files.
Features:
<ul>
<li>Simple setup – Adds latest version of Google Analytics javascript to every page</li>
</ul>
If you don’t have a Google Analytics account, you can sign up for free here: https://www.google.com/analytics/

WP Easy Google Analytics

Use Google Analytics on your WordPress site without touching any code!

Andy Feliciotti

This simple plugin adds Google Analytics into your site using your tracking ID. Additional features include the ability to change the tracking code position, disabling display features, anonymize IP, and excluding roles from tracking. Additionally the plugin works regardless if you’re using a Global site tag measurement ID (gtag.js) or Universal Analytics tracking ID (analytics.js).
Features
<ul>
<li>Performance focused with no bloat</li>
<li>Extremely simple to setup</li>
<li>Works with analytics.js or gtag.js measurement/tracking IDs</li>
<li>Regular updates for when GA changes in the future</li>
<li>Only requires your GA tracking ID to work</li>
<li>Option to put the tracking code in the header or footer</li>
<li>Options to disable display features and anonymize IPs</li>
<li>Options to exclude specific roles from GA tracking</li>
<li>Option to use MinimalAnalytics.com’s tracking code (or MinimalAnalytics4 if using gtag.js)</li>
<li>Works with WP-Rocket’s local GA script feature</li>
<li>Never any upsells</li>
</ul>
This plugin uses Google Analytics’ analytics.js or gtag.js tracking code by default. It does not include any built in reporting, to view your site statistics you can visit Google Analytics after installing.

Lightweight Google Analytics

Easily integrate Google Analytics with WordPress using just your tracking ID.

WP Easy Google Analytics vs Lightweight Google Analytics