This isn't weird at all! I totally understand your struggle.. I've found tons of servers to sell adopts in using disboard and discord.me and looking up "furry" or "adopts" "commissions" .. stuff like that! I'll send some servers I've had some success on too!!
https://discord.gg/furry
https://discord.gg/ma9VpKm4
https://discord.gg/dXQyxauk
https://discord.gg/9sKnUCUV
https://discord.gg/9TG4QSZR
https://discord.gg/9mRt4U75

I hope these servers work for you!! I know a lot of bigger furry artists usually have discord servers of their own that have advertisment channels too :}