I am finally trying the Stalk Market in NL (I know, really late to the party) and reading some guides and talking to friends really made me uneasy about my more than potential outcome. This Sunday I am possibly dropping a ton of bells of turnips and if anyone could help me sell them for a much higher amount that would be awesome. Also just tips in general are appreciated. Of course I am not heartless and if someone's town has a nice turnip price and I sell there, the person will receive a helper's payment.
Also, keep an eye out in the Online forum for anyone who has high prices in their town and ask them if you can sell there. That's pretty much it.
I used to stalk the gamefaqs forums for high turnip prices, and you had to be patient since everyone would jump on them and you had to wait your turn since only three people at a time could get in and some would have a full locker (like I did).
But on this forum, don't go looking here for help or for a high turnip price. Go to the Online board here.
There's a Turnip Prices Thread here, where people will post if they have a high price at Re-Tail. There's been prices up to mid-600s, which can net a pretty good profit if you have a drawer full of turnips bought at under 100 bells.