Currently, I'm not currently working in a dedicated modeling tool at all - just draw.io. We started with Enterprise Architect from SparxSystems - it's a bit janky and covers a lot stuff beyond SysML, but it works fine. Cameo Systems Modeler is good too - it omits the non-SysML garbage that the other platforms include, and has the best Model-to-Html rendering I have seen, but was double the cost of EA so did not use it for work. The open source tools, Modelio etc. were all a broken waste of time.

For my use, there is a sweet-spot for "models" spanning only a handful of diagrams (5-10) where any drawing software with SysML templates will do. The dedicated modeling tools like EA or Cameo become relevant once you're trying to keep model elements consistent across a large number of diagrams. Draw.io is free so the whole team can use it, and the the lack of model representation keeps diagram count low and not over-specified.

Cool products, btw.