Guess I found a good solution to manage all coins fast:
Twitter:
1. Bookmark all the verified twitter-accounts of your coins.
2. Copy all postings of them in one text-document, every 14 days. Then search for mainnet, swap, split, fork, wallet
Coinmarketcap:
1. Bookmark all your coins, and watch the charts every 14 days. Very often there is a notification about forks and swaps of a coin.
Big exchanges:
I`m holding many coins on Binance. I don`t follow them. I guess binance will support all swaps and forks.
For twitter, don't we need to click the "load more tweet" or something like that over and over if the account has so many tweet history? Which make the copy all command a little bit ineffective as there is a possibility of old tweet that didn't included on the selection