One other clock-gen module that I think is very worthwhile is https://www.modulargrid.net/e/evaton-technologies-clx This thing is actually a dual clock...except that, with its internal logic gating, you can squeeze out a host of other clock-based signals depending on which gate's in use and what rates the clocks are at. Very interesting idea with a deceptively-capable module; looks simple, does way more than "simple" implies!