I don't want to be wasting my limited paid for time in there, but what pokemon should I try to catch while I am in there that won't waste my time? For example, rare pokemon, good pvp pokemon, pokemon that people will want to buy.

go to the exclusive part if your member and other eevee or good chnasey

just eevee, chansey is "easy" to find in route 13 night

If you're a member you can go to the exclusive part of the safari and catch sylveon, umbreon, scyther and others which i have yet to find as they still haven't popped up in my pokedex yet.

--Moved to proper place--