So I have been out of the loop from cryptocurrencies for a bit now and wanted just a brief introduction about potential altcoins to look at? Thank you! 
Brief potentials i have for you are the following:
1. Do your own research
2. Develop your potentials
3. Decide where you want to start from and what you want to do. Options are Airdrops, Bounties, Day Trading, Investing Long/Short Term
4. Use a very secured wallet such as myetherwallet, or TREZOR.
5. Secure every exchanges with 2FA, Always.