For house of lancaster I suggest limiting lords to 2 in feudal age then +1 per age, that way you won’t totally kill the landmark. Also I suggest a small buff to lancaster castle that allows villagers to garrison in manors and shoot like an outpost which synergizes well now that the intention is to place a manor on each new mine/deer/berrries etc and not just build them in base, it would also make sense if the manors themselves were cheaper and the techs more expensive. Also now that yeoman have been nerfed in imperial age their cost should be reduced, they are an extremely expensive unit for their stats. Demilancers should also be trainable at keeps, currently if you want to max out demilancer damage you must go with berkshire palace but that means you don’t get wynguard and so have no way to train demilancers at all, seems very counter intuitive.
For golden hordes torguud I suggest either increasing the train time in imperial in line with the keshiks to like 20 seconds or alternatively add a build limit of like 30 torguuds to solve the issue of them being spammed. GH feudal age also needs some sort of buff, perhaps reduce training time of villager batches by a couple of seconds or add a discount to them for the batch training like russia from aoe3 DE.
For tughlaq I suggest locking the healer elephant to castle age and otherwise leave the landmark as it is. Raider and ballista elephants also need some rebalancing as both are terrible units in terms of stats/cost. Many of the governor options also need some tweaking and/or perhaps reduce cost/research time of the fort upgrades.
For sengoku the kanobo samurai is really bad, like a trash tier unit and is only good vs OOTD units, even vs elephants you are better off just using spears so this unit needs some serious buffs. Aside from that the landmarks seem quite underwhelming especially ryokan and castle of the crow which does not effect bonus damage of siege units and so is fairly useless.