WoW TSR long gameplay with as many players as possible

Level 16
Feb 2, 2006
I would like to try my map World of Warcraft TSR 1.4 with as many players as possible in classic mode. Unfortunately, on it takes a long time to get even 5 or 6 players and many players leave after their hero dies the first time.
I think the map is most fun with like 10 players and when players build teams.

One problem might be that the gameplay has no real end except you kill a very strong boss.

Any ideas were to find more players who won't leave too soon?