thats a real tough question,how much do you want to spend? You can get juice for 35 dollars up to several hundreds.Let me find you a good link,i have one somewhere.
Here you go....
http://www.all-about-juicing.com/best-juicer.htmlWe had one like the Jack LaLane that we used a bit off and on for years,when I went four a day it couldnt handle it,the plastic gear that spins the basket was old and brittle,..... Broke down late evening and I needed a juicer,NOW. Went to wally world and got a 39 dollar cheapo deluxe,and its everything you would expect in a cheap juicer,it is cheap.But it does make juice,but the pulp is still wet,your juice is literally going in the trash.BUT,it works.
I bet its only going to be good a few more months at 1 juicing a day of about 40 ounces.
I think I will go next with the machine Joe recommends,That should be good for a few years daily use.Around 150 dollars.
http://smile.amazon.com/gp/product/B003R28HWQ/ref=smi_www_rcolv2_go_smi?ie=UTF8&camp=1789&creative=390957&creativeASIN=B003R28HWQ&linkCode=as2&redirect=true&tag=rebootstore-20Breville JE98XL Juice Fountain Plus 850-Watt Juice Extractor
by Breville
1,867 customer reviews
| 207 answered questions
List Price: $199.99
Price: $149.95 & FREE Shipping. Details
You Save: $50.04 (25%)
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Countertop juicing machine with extra-wide 3-inch feeder chute
850-watt dual-speed motor; powerful stainless-steel cutting disc for fast results
Safety locking arm; overload protection LED; large-capacity pulp collector
Dishwasher-safe parts; includes 1-liter juice jug with froth separator, filter basket, and cleaning brush
Measures approximately 13-1/5 by 16-1/2 by 18-1/5 inches; 1-year limited warranty
For 300 dollars you get this
http://www.amazon.com/gp/product/B0002VAFVG/ref=as_li_qf_sp_asin_il?ie=UTF8&camp=1789&creative=9325&creativeASIN=B0002VAFVG&linkCode=as2&tag=allaboutjui03-20Next up would be a single or double piston juicer,and they are tough! Super dry pulp so you are getting all the juice you are paying for,read the reviews,these things are workhorses and in the first link.Sky is pretty much the limit on these machines.They are hard to clean per reviews.
Hope this helps a little.