Cyptopia for Electroneum, Bianace for EOS and Populolus, Mercatox for Tron and Nano, EtherDelta for Veritaseum and Pillar

Elctroneum is best had at Cryptopia https://www.cryptopia.co.nz/
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https://electroneum.com/

Cardano ADA:
https://www.cardano.org/en/home/
Binance and Bittrex
https://bittrex.com/
https://www.binance.com/

Stellar Lumens
https://www.stellar.org/
https://poloniex.com/
https://www.binance.com/

As always due your own due diligence into these exchanges and your purchases of these blockchain technologies.

Some may be the future and other are an idea that will be built upon.

Populous
https://populous.co/
at exchanges https://www.binance.com/
https://mercatox.com/

EOS
https://eos.io/

NEO
https://neo.org/

both on many different exchanges.

Tron and Veritaseum
https://tron.network/enindex.html
Exchange: https://mercatox.com/

Not long ago, Ether Delta was one of the few that listed VERI, PLR, and PPT. And it is not easy to navigate and deposit funds.
: https://etherdelta.com/

https://pillarproject.io/
https://www.cryptopia.co.nz/

https://veritas.veritaseum.com/
I would go to https://mercatox.com/ before attempting https://etherdelta.com/

There are many paper and off-line wallets and chrome app safe such as Exodus
https://www.exodus.io/

Paper is fine. Secure your privates keys !!! Read about it

Support BTC Bitcoin run a full Node... if you can !
https://bitcoin.org/en/full-node

Have Cold Storage security such as Armory
https://www.bitcoinarmory.com/

Have a Hard Wallet
https://www.ledgerwallet.com/
this a partial list: