I'm willing to invest into crytocurrencies but not sure how to start ones I'm ready to dive in. Shall I go through Bittrex, Coinbase or find a legit seller here in BTCtalk? What would be your advise?
There are many exchanges out there and it's not easy for newbies to choose the best one. I can suggest you to take a look at this comparison:
https://exchangewar.info/ and this other comparison:
https://coinmarketcap.com/exchanges/volume/24-hour/Also, you can arrange a deal with a user here on bitcointalk:
https://bitcointalk.org/index.php?board=53.0It also depends on which specific coin you like to buy...