As said,Probably depends on type of chorus vibe ur going for.
I get almost everything I need ( pedal wise) out my og tc chorus/ flanger,tc 2290p,or eventide pitchfactor.
Rackwise is a different story
The Roland/Boss CEs are the main pedal format classic, even "standard" I would say.
For an easy to get and reasonable budget with additional versatility I'd recommend the recent CE-2w, or even older CE-3.
The Waza gets the original CE-2 sound very close and offers great options with other modes and the stereo (wet/dry) capability. I use mine as a smaller version of the original CE-1 for my pedalboard rig I can easily take out. It doesn't really sound like an old CE-1, even in CE-1 mode (doesn't have the preamp effect especially), but in wet/dry with 2 amps it's close enough for live work.
The old EH Small clone is another great classic for straightforward mono pedal juicy chorus.