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There are quite a few good EP in that range, but it's not clear what you want from that upgrade. Better quality of view (field curvature, astigmatism etc), or just wider view.
APM/SkyRover Ultra Flat Field 70/30 - APM is just re-branded SkyRover from Aliexpress.
Baader Planetarium Hyperion Ashperic 72/31 & 72/36
Celestron Luminos 82/31
Explore Scientific 68/34 & 68/40
Explore Scientific 82/24 & 68/30
Counting on the long focal length 1mm difference in exit pupil is not that critical you can have anything between say 24mm and 40mm.
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