My Dob came with a 30mm eyepiece that I've quite enjoyed. It's branded as Zhumell/Apertura/GSO 30mm Superview. You can find them used pretty regularly on this site right now, as many have purchased Zhumell/Apertura/GSO scopes and already have a better (and more expensive) eyepiece.
If you are sticking to 1.25", a 32mm plossl gives you about as much field as you can get out of a 1.25" focuser.
If you can go 2", you could consider a 32mm Orion Q70/Agena SWA. The Agena is $90, new, and can sometimes be found for $60-ish used. You could also try the 38mm for wider still, but the exit pupil is pushing things for an F/6 scope (I'd personally avoid the 40mm ES68 for similar reasons). At F/6, the Q70 will show some definite edge distortion, but many people find it acceptable. If you want better edge correction, the 34mm Explore Scientific 68 will deliver, but at more than double the cost of the Q70.
Decent 82-degree AFOV or wider eyepieces in longer focal lengths are really expensive: an 30mm ES82 will max out your scope's field of view with very usable exit pupil, but it will run you 4X the price of the 32mm Agena SWA. And it's the "affordable" alternative to a Nagler.
With a tracking mount, I actually prefer narrower fields of view for planetary (a little subject looks bigger in a smaller field), but on a dob, you'll probably want a wider field of view to allow longer viewing time between nudges.
The 6.7mm ES68 would be a good pick, but pretty pricey. The Meade 5000 82-degree eyepieces are more affordable. They have a 5.5mm that I believe you can find on sale for $100-ish. They also have an 8.8mm that is pretty highly regarded (and not just for the money). I'd want a bit more magnification than that, though. But you could always add a barlow.
If a 60-degee AFOV is enough, the Meade HD60, Agena Starguider, Astrotech Paradigm are similar lines that are a good bang for the buck. Look for something around 6mm for a high-power eyepiece that will be good most nights.
I like what Tangerman and Jailbery are saying.
I have been involved with amateur astronomy for a number of years and like many, I have quite an assortment of equipment including a set of about 20 TeleVue Panoptics, Naglers and Ethos eyepieces. These are very nice eyepieces. And there are others. But it wasn't always that way, it's only been the last 15-20 years or so where I could afford such eyepieces and it was a slow gradual thing. My scopes are generally quite fast, F/4-F/7 with my Dobs at F/5.5 or faster.
But recently, I have been looking back at my earlier days and using eyepieces that while not anywhere near as perfect as the premium eyepieces, are affordable and taken with the right attitude, that is, a cup half full, what can this eyepiece do?, they are not only effective but enjoyable, even for a picky old codger like myself.
In this quest, I purchased both the 30mm GSO SuperView 65 degree and the 32mm 70 degree Q70 clone. If looked at with a critical eye, they are definitely flawed eyepieces, the off-axis astigmatism means the stars are not tight round dots across the field. On the other hand, I paid $60 used for the Q70 clone and as a finder, low power eyepiece, I have been surprised how effective it is, despite it's shortcomings.
For higher magnifications, I purchased several of the Astro-Tech Paradigm eyepieces. These are $60, 60 degree eyepieces. For me, the eye relief is comfortable, the 60 degree field of view is sufficient to feel unrestricted, not 100 degrees, but enough. The 25mm and the 18mm are not sharp across the field in a faster scope, the 12mm, 8mm, 5mm and 3.2mm are reasonably sharp. Again, they're not as perfect or as wide as the more expensive eyepieces but for me, as critical as I can be, I find they provide very enjoyable views.
Last month, I spent the night under dark skies with my 16 inch and the Q70-Paradigm set. The TeleVues were ready and waiting but I never felt the need, what I was seeing was plenty good enough.
Basically what I am saying is this: You have a very good telescope, it's simple but capable, it can show you a lot. It's nice to have the expensive eyepieces but the eyepieces like the Paradigms and Q-70s will allow you to see most everything you would see with the expensive eyepieces. You are at the beginning of a marvelous journey, there's a lot to learn, a lot to see. At this point, just enjoy the views, imperfections and all. No need to spend money you don't have on eyepieces...