It is not hard to integrate Dimension Badge in OJS. Under /templates/frontend/object/ find and open article_detail.tpl and enter bellow code where you want to the badge.
<span class="__dimensions_badge_embed__" data-doi="{$pubId}" data-legend="always" data-style="small_circle"></span><script async src="https://badge.dimensions.ai/badge.js" charset="utf-8"></script>
You can find more details at https://badge.dimensions.ai/
You can register your journals (free or paid) at Dimensions Badges and Metrics API at https://www.dimensions.ai/metricssignup/
