With the advent of the Blocks Module we have shifted focus quite a bit to fundamental building "blocks" and low-level supporting field types for said blocks. One such field type we have seen as pivotal is the Icon Field Type. Our decision to make this free, open source, first-party field type was part of our effort to make including such features in blocks easier going forward for the community.
To get started simply require the addon with composer and assign it to your stream or include it in your block like you would any other field:
composer require anomaly/icon-field_type