Ive seen a lot of threads about which alt coins to invest in. Honestly right now.... I'd just focus on Bitcoin and maybe Ethereum. Bitcoin is king and has made me a small fortune in short term. Keep an eye on alts.. and if you see one skyrocketing, by all means, invest... but I think the proof is in the pudding. Bitcoin.. and a couple promising ICO's. Don't complicate it.
I only uphold one thing when it comes to investing i would rather check if it is legit and really secured. Nowadays a lot of scammers and hackers is always there to scam you so it is better to fully check the investing sites. It is better to invest with bitcoin now because price is really unstoppable.