I really like how deadlock does it; you just have to hit the creep with player damage in the last few seconds of its life, and then your whole lane gets the reward, which can’t be denied. But it also generates a little orb that can be secured by either team; if no one pops it, it automatically goes to the killing team. It has the HOTS thing where farm gets shared pretty much evenly among everyone in the lane, but there’s still enough gameplay to the creep killing that it’s engaging, instead of just standing in lane passively and getting XP for it.