I don't know whether this is of any help (or hinderance) to others, but as I'm new to all this, the method I'm using to find some, let's say, interesting companies is as follows. As everybody says, please do you own research, but this seems to be working for me so far:-
1. First up, I invested in NIO, thanks to @SkipDonoghue, and Bushveld thanks to
@Bovril on these forums.
2. I Googled "share chat" for NIO and Bushveld to see what was going on with these companies. The site that kept coming up was "Stocktwits".
3. The main issue with "Stocktwits" seems to be that everybody thinks that every stock ticker mentioned is going to make them millionaires, and admittedly 90% of the posts appear to be GIFs or videos of rockets going to the moon. However, in amongst all of this, you do pick up some interesting little asides.
4. For example, if you are looking at NIO on there, people often post comments and tag other stock tickers (a bit like twitter). This was how I found out about the CCIV/Lucid thing and ABML, which both seem to be doing OK and GAXY, which isn't doing OK yet but I'm happy to let my £60 ride and see how it plays out.
I'm not a member on Stocktwits, but it seems to be a useful site to keep an eye on (like I did on Blue Moon Forums for over 10 years before signing up this summer).