I'm not going to give you much detail.
But the whole thing went off the rails in the 7th season, when Dany was convinced to take her eye off King's Landing. Attack Casterly Rock, which goes bad. Go capture a wight to show Cersei, which doesn't work and leads to losing a dragon, which leads to the White Walkers breaching the wall. Euron constantly showing up to wreck ####. A lot of the bad plotting, in my amateur opinion, comes from that choice to delay Dany taking power. And then obviously having her do so via murdering hundreds of thousands of people, and Jon STILL hemming and hawing about having to knife her (come the #### on).
I would've liked to see Danerys take the throne in s7. She has dragons, Tyrion knows you can land people at the bottom of the red keep and get in, she has armies. She could've gotten that done easily, and without the ridiculous scorched earth #### or screwing around with Casterly Rock and having Euron #### their #### up. That leaves the last two seasons of Danerys ruling Westeros, and all of the challenges that come with that. You can have the NK breach through the Castle Black gate and start marching South, setting up the big war. Or maybe the threat just looms larger and larger, and there's an open question about how to deal with it. You can still have the mini-coup/murder of Dany, but I think it's a better story if it's not so clear-cut as to why she had to be taken out. Maybe there's tension between Sansa and Dany, and Sansa gets into Jon's ear about murdering Dany. Maybe Arya assassinates her on Sansa's behalf.
It ends with the same type of small council at the end, but I think that the lords pick someone that they all think they can influence or will be more on their side, like Gendry. I don't buy that everyone would've been on board with Bran. I don't think many people are. But the last couple seasons have felt inorganic. I think they could've gotten there more organically, and without KL getting torched. Or Euron being a thing.