With a goto scope you really only need a red dot for calibrating the goto function though I have no idea what the process is like with that one vs my celestron goto.
I rather like the 3 eyepieces I have with basically the same scope you have (see signature) though you could substitute the 9mm 100 for the 120 that I bought which is really more of a novelty than a necessity.
The 82 degree series is much more reasonably priced and still nicely wide as well.
That gives you this:
I have no need of wider with the huge view of the 20mm 100 degree and the seeing where I live is usually such crap that I have yet to get around to justifying anything with higher magnification than 5.5mm (173x).
ES doesn't have an option unless I drop back to the 82 degree and the televue ethos 4.7 110 degree is tempting but too close to my 5.5 in magnification for that much money and I think the 3.7 might be pushing exit pupil size into the glitchy range (.49mm) and even the 5.5 is so dim its really only useful for planetary and lunar.
Edited by PPPPPP42, Yesterday, 11:22 PM.