Sometimes walk up RP can be hard, depending on the time of day or people you run into. I personally get that. There are a few things I can suggest if you are looking for a good RP guild or RP interactions. Watch for RP events being listed here on the forums, whether they are neutral or Horde aligned events. Second if you use Discord I would suggest looking at joining some of the communities that exist for social networking and advertising LFRP and even guilds advertising themselves.
In fact on April 25th there is a huge Horde guild recruitment fair going on. The thread for this is right here: [H- RP Event] Attention, Horde Guild Seekers!
The Wyrmrest Accord discord is located at https://discord.gg/nhYgPEZ. And if you want to see more check out: https://wyrmrest.fandom.com/wiki/Discord_Servers
I wish you the best of luck in your hunt for a guild and RP. I promise it’s out there!