Looking for advice, new to this!

I'm new to all of this so please bear with me I'm thinking about starting my own business as far as lawn care is concerned not sure about what type of mower I knee because all I have now is homeowner grade.

Which type of mower brand should I be looking at I won't be doing a whole lot but still don't want to spend the time but don't want to be too cheap also what prices do you guys charge???

Any advice is more than welcome thank you in advance!!