Better than Mars Colonization in many aspects.

[DeepSciences]

Venus is not at the top of the priority list when it comes to the colonizing of space. Mars mostly takes the top spot but when checked deeply, it is very comparable to Mars Colonization and in some aspects it is even better than Mars Colonization. 

https://scientificdocumentaries.com/space/cloud-cities-on-venus/  

[HallsofIvy]

Mars, while it does not have a good  atmosphere has at least sufficient that one would not have to be always bundelled up in a full pressure suit- a warm "snowsuit" and a face mask.  But Venus (contrary to early sci-fi) has an atmosphere made up basically of molten plastics! 

 

[Gant]

I have been pondering on the colonization process of mars and its eventual terraforming....but mostly its colonization. It would seem to me that preparations for such a trip would have to be made...a sort of "trial run" somewhere on earth where the suit would be convincingly necessary for the test subjects. The psychological effects of constantly being at threat of the outside elements would have its toll on the human mind. Better to see how severely here on earth than there on mars. Measures from such a test could help make the endeavor more successful.

I figured the test site should be Antarctica. Cold..so suit is needed for protection...and successful farming ect in Antarctica would seemingly mean it would be successful on mars.

[JohnPi]

If to take into consideration exoplanets, Ross 128 b is the MVP. It has the same size as Earth has, it's rocky and is orbiting within the inner habitable zone of the red dwarf Ross 128, at a distance of about 11 light-years from Earth. The planet is considered one of the most Earth-like worlds ever found in relation to its temperature, size and rather quiet host star. Ross 128 b is very close in mass to Earth, only about 35% more massive, and is likely around 10% larger in radius. Gravity on the planet would be only slightly higher. To cut a long story short, exoplanets are full of space facts

But if we are still limited with our Solar system I think it could Europe, Jupiter's moon