Bitcoin:
https://bitcoin.org/de/
Everything started with Him. My first mining experience was also based on Bitcoin.
Long-term Investment and I pay with it.
Litecoin:
https://litecoin.org/de/
Also, I have been able to greatly improve my experience through LTC.
Long-term Investment and I pay with it.
ZCash:
https://z.cash/
Interesting fork. zk-SNARKs is also a very complex and future-oriented system. Privacy as well as full anonymity if desired.
Long-term Investment.
Monero:
https://getmonero.org/
Interesting because open source and a strong community as well as high anonymity.
Long-term Investment and I pay with it.
Ethereum:
https://www.ethereum.org/
Interesting platform. Hereby I made my first experiences with DApps.
For me a pure medium of exchange.
DigitalNote:
https://digitalnote.biz/
Interesting project. Since the ICO.
Long-term Investment.
Doge:
https://dogecoin.com/
For this I decided purely as fun and use DOGE to give people a better look into the crypto world.
I pay with it.
Ripple:
https://ripple.com/
Is not a real crypto currency for me. A pure medium of exchange for banks. Not more!
Long-term Investment.
Tron:
https://tron.network/index?lng=en
I've been with Tron since the Ico phase. Tron is one of the coolest blockchains for me. Great potential in the future.
Long-term Investment.
IOTA:
https://www.iota.org/
Tangle !!! Cool technology! There is nothing more to say. The future will show us.
Long-term Investment.
Cardano:
https://www.cardano.org/en/home/
ADA or the cardano team convinced me from the beginning, because it's a "scientific" crypto. Hard to explain, hope everyone understands what I mean ;-)
Long-term Investment.
Waves:
https://wavesplatform.com/
Very future-oriented and very beginner-friendly.
Long-term Investment.
Gulden:
https://gulden.com/
Pay for me purely. Am so often in the Netherlands and it's just very comfortable and you can pay almost anywhere.
I pay with it.
LIABILITY-IMPORTANT:
This is not an investment tip! It's all based on my personal experience!
Still best wishes ;-)