Looking for warm up portal lobby

As the title suggests, I am trying to find a good portal lobby thats essentially a warm up lobby thats full of bots. Not looking for xp farming or any regular game modes, just a server with nothing but target practice bots.

Can anyone please point me in the right direction to find what Im looking for? Ive seen Klass (RedSec streamer) use something like this, but i havent been able to find one that public.

I may just have to create my own, but wanted to ask the community gor insight first.

thank you all in advance!