with this lockdown and all I am taking an interest again to see whether I could make this as a source of a somewhat stable second income using my existing extra income
You should not treat your crypto investment or any related doings as a stable source of income. Crypto is volatile. Just treat it as your investment wherein you have to wait for a good result.
1. best reads or videos (books, blogs, websites, YouTube channels etc.) on how to invest in crypto
2. best forums (other than this one which seems great) and meet ups for crypto investors (I know Telegram but are there other more specific chats?)
3. newsletters and news on new upcoming ICOs and crypto projects in general (I use coin desk but what else is out there of reliable?)
1. You can do that by using a quick search on Google search and Youtube search. There are lots of videos already circulating about how the methods of putting money on crypto.
2. Bitcointalk.org
3. You can stick to that. Reading to other sources might build up hype for you instead of gathering general information.
Other than that I had also a question which is: would any of you recommend trading through an automated trading software? I am currently using Coinbase and they keep on proposing their automated dollar average costing platform,
Stay away from any trading bot software if you don't know how trading works.
Spend time learning the basics. No shortcuts.
I suggest trading at Binance.