I would delay the solar filter for a year or two. Not much going on in the sun in white light.
You need to understand that two inch eyepieces--there aren't many of them below 20mm. And the ones that are below 20 mm are often 1.25" eyepieces with a skirt of steel that lets you put them into a two inch diagonal without an adapter.
Two inch eyepieces are fantastic but in your scope you will likely find an 18 to 20mm to be your most used eyepiece. So don't choose by whether it is two inch or not, choose by the Apparent Field of View. (AFOV). My tastes in glass run (a) expensive and (b) towards "moderately wide fields" -- in the neighborhood of 70 degrees. If you want an 80 or 100 degree eyepiece I'm sure someone will help you out. There are budget alternatives.
In the premium categories the Nikon 17.5 mm and the Delos 17.3 mm (Televue) would be a very nice fit.
You *do* need a 30 mm two inch eyepiece of 70 degrees or more in order to scan the sky and find stuff. Your scope is nearly f/6, it might be OK to go for a 40mm ocular for maximum wide field, but the usual wisdom regarding exit pupil (try to stay at 5 or 6 mm or smaller) would argue against that. A 40mm in your scope is about f/7 which is a bit wide (40/5.9)=6.8. I would actually "go for it" but conventional wisdom would suggest you stick closer to a 30 mm (30/5.9=5.1 mm exit pupil).
So I would suggest you prioritize something in 30mm (two inch format, 70 degrees AFOV or more), and something in the 17 to 20 mm range (70 degrees or more, two inch or 1.25", the two inchers will actually be 1.25 inch).
The 24 Pan Optic and 27 Pan Optic are frequent choices among Dob users. Reminder: There is a used market, which is very good for oculars, and there are a number of mid-priced and low-priced imports from mainland China under various names, so check out what you feel comfortable spending.