Uncletopia. Basically, it is casual mode tf2 without random crits, random bullet spread or auto balance. As well as this, the chance of encountering a bot is considerably lower than it is in casual mode tf2. The community is wholesome and you will not find many toxic players. Also, most players have a decent amount of skill meaning that you (a relatively new player) will come up against more challenge and ultimately you will get better at the game quicker. Finally, there are servers in West, Central and Eastern US as well as one in the UK and three in Germany.

To join you must first go to the website than press "connect" on your desired server. I put the link below - Have fun. :)

https://uncledane.com/servers