The best way to get in touch with others currently playing MegaTeamFortress is to join DISCORD.
To get started, just click this Invitation to the #TeamFortress server. There's a lot of good people there to help you, and it is a great place to post if you're looking for players to shoot at.
Clan Moose Mega2KRunning MegaTF 11.23.2K
connect to: server.playmegatf.com:27500
Tastyspleen MegaTF ClassicsRunning MegaTF United 1.16.06
connect to: 18.104.22.168:27502 (new address)
FragFridays! Every week at 7PM EST.