Phono cartridge

I've used Grado with S-tonearms many times, especially with Technics tables, and this seems to be a very similar table. Should not be an issue at all. The Prestige series is the highest level I would spend for that table however. 

@deadhead1000 Excellent advice.

Many are compatible, better to get a few you are interested in, ask about specific ones.

IMO, that TT is darn good (I've had 2), get a new AT Cartridge with advanced stylus shape, and a 2nd headshell, leave the original Elliptical in it's original headshell.

This would be great on that TT.

https://www.audio-technica.com/en-us/cartridges/type/moving-magnet/vm540ml-h

Almost any cart that tracks at 2 grams (mN) will work.  Beware lighter trackers, as they have higher compliance than that arm is good for.  Matching a cart mechanically is easy, but sonically, it depends on your musical preferences, accompanying electronics, speakers, etc.  I agree with Jr. that AT makes a good all-rounder.  While the Sumikos lack the advanced stylus specs (nudity, line contact), their generator is excellent and plenty of listeners love them for their "warmth" and excellent tracking.  Consider a Rainier as one of your options.  For a Grado, I'd look at the Opus 3 if budget allows.  It gets a lot of love.

A little on the heavy side but it will work