Can you clarify your objectives? If you were happy with the Dobs, you may find any sort of SCT expensive and complicated, requiring a tracking mount really to get the next out of it, then there is the fact that they are dew magnets, requiring corrector heaters, etc etc.
In my experience a 8" f5 Dob is a sweet spot, plenty of reach, light enough to handle, no mount required for visual use. If you want to go do imaging, then a 8" f5 Newt is also a great alrounder.
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