Will give you a hindsight of all the coins you have mentioned.
DGB - On the rise, would've been a best case scenario investment a couple of weeks ago, still a good investment today.
Sia - Haven't followed it lately but its peak surge is almost over so just look around for the current market status.
Waves - Being a dedicated blockchain, this is probably the safest investment over the rest as it has shown steady growth over the last couple of years so definitely a decent coin to hold.
Agreed. But I think they all will be dumped a lot before 25th October. I'd like to wait a little.