You could look into making single purpose blocks. Then you can get listed in the block inserter upon search an site owners an install your block right from there. Some plugin developers made great inroads in active installs with this more friction less process. Once your block/plugin is installed you can provide links in the sidebar to more expansive plugins or premium versions.
The WordPress Block Editor offers two types of blocks: static and dynamic. The difference between these two types of blocks comes down to how they are rendered on the front-end.