Again, this is a very general question and the answers can/could be quite broad and varied. As a starting point, most good players will have vpip/pfr stats that are fairly close in value. There is tons and tons more, but that is a good place to start.
Most good players will also C-Bet a fair amount of time. Most good players will be fairly aggressive. Just so many things, but nothing is set in stone for any one particular player. There are good players who probably break all these rules. But, in general, looking for these things is a good place to start.