Network Layout Question, please need your advice

We have a small lab that we recently expanded to seven computers and we need
to design and layout our network across a two-room facility. In the main
room, their are five computers, and one printer is shared them. Our printer
is connected directly to a network hub. We have another room with two
computers that are specialized systems that control lab tools. We often each
work from our own computers and use a remote desktop session on the
specialized lab computers to manipulate experiments in the lab.

What would be the best network layout for our situation? Would you use a
star topology or a ring? Can you please explain to me the best way to do this?