Hello,
All the available coin adapters are listed here: https://www.dashed-slug.net/howto-choose-between-available-coin-adapters/
The other adapters are for full nodes. The software shown is the Linux shell. You don’t need to download it, it comes pre-installed when you hire a dedicated server.
Keep in mind that, if you plan to install a full node wallet, you must know how to install it as a service on a Linux box (e.g. on systemd), you must keep the software stack of the server up to date, keep regular backups, and configure the networking between your full node server and the wordpress server, including any firewall issues that may arise.
I can teach you none of these things over a forum. IF you are certain that you need to run full nodes, then talk to someone with technical expertise on system administration. Running full nodes is costly and comes with unexpected surprises.
with regards