There are a ton of opinions online about pedal steel guitar but I think all will agree that it is critical that your guitar be mechanically sound and stay in tune. There is nothing more frustrating then trying to learn a new musical instrument on a piece of junk.
The pedal steel guitar by Asher Guitars which is the Electro Hawaiian Junior is one of the best out there . All of the Asher guitars are just fine to start on if you choose this path. Personally, I do not recommend buying a starter instrument. I would choose a used S-10 with a minimum of three floor pedals and four knee levers before buying a starter type guitar. I feel that this will save you money in the long run. I would suggest staying away from the Maverick, Red Baron, and Little Buddy guitars. These are old student models from Sho-Bud, MSA, and Emmons. There are folks who would argue in favor of these, but in my opinion, they are far more trouble than they are worth.
There are many gems available in the used guitar market. Some of the older guitars are quite acceptable and excellent bargains. The mainstream steels of current manufacture are often found used, but generally command a higher price. These include Emmons, Mullen, Zum, Carter, Sierra, Remington, Williams, GFI, Derby, Franklin, JCH and Fessendon. All of these steels have their fans… as well as their detractors.
New steel guitars are expensive but may be custom ordered to your preference. All of the current manufactures make quality guitars. Some like Zum and Franklin have a nearly one year wait from time of order. Emmons has weathered a tough period following ownership upheaval but currently is doing fine and making some of the finest guitars in their history. The Carter folks are the volume leaders in sales and have a wonderful website with excellent information on the steel guitar. The Fessendon guitars seem to be a popular instrument which has a very nice price. Gene Fields is making a very well constructed guitar, the GFI. As you can see, there are a ton of choices available. It boils down to your own taste and financial means.