Hello Nick,
I checked a few of these coins on github, and they seem to be forks of Bitcoin/Litecoin. The important thing is that they should have a compatible JSON-RPC API.
In this case, you would use the Full Node Multi-coin adapter to connect to their wallets.
You will also need to think about running the wallets on a server or servers as services, configure the firewalls, etc. This is out of scope of this plugin.
All the details on what you need on the coin adapter side are on the extension’s page: https://www.dashed-slug.net/bitcoin-altcoin-wallets-wordpress-plugin/full-node-multi-coin-adapter-extension/
If after going through the instructions you need additional help, the support forum for the coin adapter is here: https://www.dashed-slug.net/forums/forum/full-node-multi-coin-adapter-extension-support/
kind regards,
Alex