In general, I didnt differentiate between protectorates/vassals and annexed land. Meaning theres basically as many as one feels is needed. But yeah this is meant to be a 19th century empire
Tbh the only major Portuguese outpost in india I knew off the top was Goa (and ceylon for a bit) so that's what I went with
Noted on the eastern islands
Ignore me completely forgetting about macau.
Oh, and since it seems ttl has to be a brit and spain screw, does that mean france and the netherlands are the main competitors?
If you google Portuguese India you can see several enclaves north of Goa. Also the size of Goa I think would of increased over time even larger than iotl.
As several posters have indicated the Portuguese would of needed to cut the Muslim traders from India and east Asia. To do that Aden would of needed to be captured and used to cut Red Sea from India ocean plus capture and securing Oman which included Zanzibar be important to domination of Indian Ocean and East Indies.
In terms of size as I indicated in previous post is. bit hard to do as you indicated with current size. Expansion is crucial even if you only add Galicia or some border areas from Leon /Castile on the Iberian sid. They not be huge task. D Henriques had captured almost all of Galicia but had to return them when his heir was captured at cidade Rodrigo. Have Sancho not be captured but also able to conquer cidade Rodrigo then you start Portugal much stronger. As for Leon and border cities like Badajoz have Portugal intervene in Leon succession and split country with Castile or take it all this leaving Portugal stronger and less threatened by Castile.
As for competitors. It is really upto you. You can have Spain exist or keep both Castile and Aragon independent (crazy one is Portuguese king inherit Aragon throne. Keeping Castile in between them and docile.)
Castile / Spain can still become embroiled in European affairs and be more successful in controlling while same time preoccupied with Holland.
as for France they had an aversion to sending settlers out and were more interested in $. So allow then the St Pierre and Michael islands off Newfoundland and access to Grand Banks while they concentrate on Caribbean and sugar plantations.
England can split North America with portugal and use the Hudson or similar river as border. They also concentrate on the southern colonies and Caribbean and even in future go to lands south of Rio de la plata.
castile/ Spain could still reach Caribbean but the success or lack of success against Inca and Aztec would greatly reduce their income and power. The Portuguese with Brazil for sugar, tobacco would leave southern US and Caribbean to be fought between England, France and Castile/Spain.
the ability of Portugal to retain its rich Jewish population / traders weakens ottoman and without an independent Dutch Portugal has extra 50 years in Indian Ocean before competition.