I'm up for bounty board, with limited slots maybe? This can greatly help plotting how fast/slow the quest would be, as well as help GM in gauging the bounty to be hunted.

eg#1. Bounty 1 is goblin hunt, only 2~3 people can take this quest. Any more players and it might be unsatisfying to massacre the mob.
eg#2. Bounty 2 is werewolf pack hunt, suggested players is 3~5. Considering how dangerous it is to take down even one, a sizeable group is needed. However, if only 1~2 join, then the pack can be turned into just one werewolf.

as for pacing, we used to do a system in our past rp where the cycle is pre-set (everyone must do at least one thing to progress eg. attack, dodge, etc. Banter is free-flowing, as it is considered cosmetic/ flavor.) Anyone who fails to put an action in is put on "autopilot", where they're narrated to be there.

eg. Player A, B, C on a quest. C does not put an action within the cycle, so instead of waiting for him to reply, he is instead put on "autopilot" where he is narrated to have just been in the quest all along, either a bystander or has done a generic move.