At entry-level, I would start with a Technics SL-1200 Mk2 (one that was not used and abused by club DJ's), there are some out there that were not used by a DJ and start there, and you should get one of those for $500.00 or so, and start with an Ortofon 2M Blue and go up from there (a Denon DL103 or better comes to mind here).
Further up the food chain, I would then hunt for a Technics SP-10, use whatever tonearm that sonically pleases you, then start with a Denon DL Series Phono Cartridge and go on from there.
Don't forget not skimp on the phono stage while you're at it. I do like the Sutherland Phono Stages. Maybe overkill for the SL-1200 Mk2 depending on which model you select. Now, with an SP-10? You're good then. Don't want to spend a King's ransom on a phono stage (which I don't), then I would look for a PS Audio GCPH that's also well kept. Those were $1,000.00 when they were brand new, but you should be able to find one for $500.00 or less now.
Good Luck and Happy Listening.
--Charles--