None of them are what I'd call token of the future, they're tokens being used right now for sure. TRX I have some, and useful to get the drops of Bittorent (which I think is also quite a good one for future) but they are all rather centralized to think for a long term hodl.
I have started building my Portfolio....Please suggest some more tokens to be included, apart from BTC and ETH.... ( these two are all time favorite for anyone i guess

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Not really actually, I know a lot of Bitcoin people who really don't like ETH, myself I'm one of them. I actually only recently took some ETH but purely to speculate on, never even use it for anything unlike BTC.