Answer two questions to get a straight recommendation, with the kinematic reasoning behind it.
Choosing a robot architecture is fundamentally a kinematics question: what motion does the task actually require, and which robot geometry delivers that motion fastest and most reliably? This tool maps common task descriptions directly onto the robot architecture built for them.
Every major robot manufacturer sells articulated, SCARA, and (for some) Delta or Cartesian robots — the architecture decision is almost entirely about the motion the task requires, not which vendor you prefer. Pick the architecture based on required degrees of freedom, speed, and work envelope shape first, then shop vendors within that category for price, support, and payload/reach specifics.
No single architecture is best at everything by design — that is exactly why five distinct types exist. A 6-axis articulated robot has the most flexibility but is slower and more complex than a SCARA for simple vertical pick-and-place, and a Delta robot is far faster than either but only for very light payloads in a limited work envelope.
Many real applications combine requirements — for example, assembly work that also needs some 3D reach. In that case, lean toward the more flexible option (articulated) if the task variety is genuinely unpredictable, or toward the more specialized option (SCARA/Delta) if the bulk of the cycle time is the simple repetitive motion, accepting a secondary tool or fixture for the occasional exception.