Hi Joe, welcome to C4D.
There are many ways to do blobs (such fun, aren’t they?). For the attached sample project I put cloned spheres into a Metaball object and used a random effector on the cloner to animate the position and scale of the spheres. The Metaball essentially creates a skin around whatever you use it with, so the scaling and moving spheres inside of it create the changing shape of the Metaball. Adjust the “Hull Value” in its “Object” settings to control the skinning, and the Editor and Render Subdivisions for smoothness. I changed the gravity setting to -20 in the Project Settings (CMD + D) > Dynamics, and I gave the Metaball some slow movement by enabling “Custom Initial Velocity” in the dynamic tag’s “Dynamics” settings and adding Initial Linear Velocity and Initial Angular Velocity values. If you’re not already familiar with the Help menu, get used to calling it up by right clicking on an icon or parameter in a menu and selecting “Show Help,” and you should be able to find explanations for just about anything.
Hope this helps.