Havely or Other Design Assistance?

I’m purchasing my first home, and want to redesign it. I’m a visual person, so looking for recommendations on tools/software to

A- upload photos of my main floor which has a 24 ft wall so I can envision different paint colors and floor colors before I hire someone to refinish floors & repaint

B- upload photos of different rooms to envision the redesign (paint, furniture, etc)

C- potential help in B above, guidance on paint colors, furniture, aesthetics etc. Havely is the only option I know of, but heard mixed reviews. My style is modern/contemporary, if that helps.

TIA!