Majority will be answering about those top ranking coins specially on 2-10 or to 20 but there are some projects that are undervalued which are on low rankings but they dont
really gain that much attraction but rather people or the community had been focusing out instead mainly on whats had been pumped by the majority.
When it comes to privacy matters then i do go for XMR and ZCASH for smart contract thing then ETH will be the top and LTC isnt really that a bad choice either.
It is  just depending on what coin you do see to have some relevant usage or benefits not just only for shows.