I bought my first Bitcoin 2 years ago, I was a complete nooby but luckily I managed to dodge the altcoins and the bcash fork. My memory isn't 100% reliable but I think reading The Bitcoin Standard @saifedean and The Bullish Case for Bitcoin
On reflection, if my first introduction had been via BCash or some other alt, I doubt if I would be in the fortunate position I am today.
Over the 2 years, I have personally introduced some 32 individuals to Bitcoin and all but 4 are still hodling.
I have in the past recommended @WhatBitcoinDid but no longer do so.
I think @PeterMcCormack provides excellent podcasts but being a Bitcoin Hodler I would not recommend anyone I introduce to Bitcoin to his podcasts initially.
I would be extremely concerned if I did so they may fall into the Roger Ver podcast "before" they had educated
Personally, I know no one who became a bitcoin hodler and switched to altcoins.
Just saying.