Hey there. Check out New Leaf. We operate mostly on Discord.
The community knows our guild as a PvE only guild but we do PvP as well, just not in-game. Ladder isn't the only place you can play Pokemon competitively. We host regular Pokemon tournaments; our Draft League which is on its 5th season and our more recent Premier League, inspired from Smogon's Premier League tournament.
Although if that's not enough, we do have our fair share of members in the guild who jump on ladder from time to time and/or screenshare and tons of others who have a passion for competitive Pokemon.
If you're interested, here's the link to our forum thread: https://pokemonrevolution.net/forum/topic/142578-new-leaf-draft-league-tournaments-giveaways-discord-shops-events/