In a small space like that, I would not choose to use a freestanding tub. In your last 2 pics, those tubs look unfortunately squished into the space and like a nightmare to clean around. You will get better responses if you post pics of the full bath and maybe a floor plan.

A floor plan for sure and IMO freestanding tubs only work in large bathrooms where there is lots of space around them I would do a tub/ shower combo with a glass shower screen and add some storage to the space left over. Maax makes some nice soaker tubs

Unless you really are going to get use out of the tub, I would make it a walk in shower.