AnarMOTD produces MOTD messages suspiciously resembling 2b2t's MOTD:

It can also have the permanent MOTD text shown at the top instead:

Like in (old) 2b2t, every time you refresh the server browser, a new string of text is chosen. This string of text is loaded from a specific text file defined by the configuration.

Modes you can choose: hidden, prefix, subtitle.

The plguin's configuration also allows you to choose color codes for both the title letters and for the random MOTD string through color and style keys across the config file.

Example configuration for Fabric (2.0.0)

Configuration located at config/anarmotd/config.json

{
  "title": {
    "mode": "prefix",
    "style": "bold,italic",
    "value": "NRMC"
  },
  "motd": {
    "file": "config/anarmotd/motds.txt",
    "color": "gold",
    "style": "none"
  }
}

Example configuration for Paper/Purpur (1.x.x)

Configuration located at plugins/AnarMotd/config.yml

title:
  mode: prefix
  color: gray
  style: bold,italic
  value: NRMC
motd:
  file: plugins/AnarMotd/motds.txt
  color: gold
  style: none

Disclaimer 0

Paper plugin (targets 1.19.x but probably runs up to 26.x) and fabric mod (currently targets 1.21.11 only) have INCOMPATIBLE configuration locations and syntax. Plugin uses YAML and the mod uses JSON;

Disclaimer 1

I made this mod for my own SMP and in my free time so stuff like updates would probably be quite slower than %popular_motd_name_here%, though making a version for a newer game version should be trivial if APIs don't change