Wh- yes they do..! They had the literal entire non-fascist galaxy backing them in TRoS..! Failing that, there's the entire set of aces in Star Wars Resistance (huge RIP to that show ****) and not to mention we have...
1: The BTA-NR2 Y-Wing
2: The Resistance Y-Wing
3: The T-85 X-Wing
4: If you REALLY want, the shuttles from Resistance.
5: Literally anything that flew with them at Exegol.
That's four options plus a huge variety. For The First Order... To be honest, we actually only really have like two left! We have The TIE/FO Bomber and the TIE Dagger- so on that you are indeed correct, but it is still rather strange isn't it? But... Here's the weird thing.
The Original Trilogy only had these ships for The Rebellion and Empire.
Y-Wing, X-Wing, A-Wing, B-Wing, YT-1300.
TIE Fighter, TIE Advanced, TIE Bomber, TIE Interceptor, Lambda Shuttle TECHNICALLY THE TIE SHUTTLE TOO but that's getting REALLY particular and expect to see that with Skystrike Academy + not with the ESB body shape but the one used in Star Wars Rebels.
The Prequels weren't much better this way! The Republic and Separatists had...
N1, Delta-7, ETA-2 Actis, V-Wing, ARC-170, LAAT/i* huge asterisk there because we only saw it in space when auxiliary material came about - for a long time we had NO IDEA it could really work as a combat vessel in space - and then any of Padme's ships but that's dubious too.
Vulture Droid, Sith Infiltrator, Slave-I, Tri-Fighter, Belbullab-22, The Mankvim if we really care enough but do we actually?, and uh... I think that's it.
The most ships always, always come from auxiliary materials if we're totally honest. Anything beyond these was very much either EU or TV series. The Sequel Trilogy hasn't had enough time to have this in too much, but it HAS had a handful of Aux. Material ships make it to the big screen or associated media. The entire Ace squadron, TIE/FO Bomber and T-85 all made their appearances outside of films - and at least three of the aces made it into TRoS. Which is still pretty cool to me, even if we basically didn't see them it's nice to know they are indeed there, fully and lovingly rendered.
Anyway, sorry to go on like this. Just wanted to really highlight this little bit of thought.
Oh yeah, it definitely has no gunner. As for the T-85, it does seem like a probably straight upgrade to the T-70, but its cost would... Well it would honestly be far more than a TIE Defender. I would not be surprised to see naked T-85 Poe reach eighty points minimum.
Humorously, one could lower Kaz's initiative to 3 or something and give him a weird, iffy version of his current ability because he wasn't as skilled of a pilot just yet. A neophyte in the game's likely best chassis is a humorous consideration to say the least.