what's your budget OP we always do big active trips but they don't come cheap. Out of all of them the top 3 I would say are:
Iceland- volcanos, quad biking, glacier hiking, into a glacier, history, geography, whale watching. We booked it all ourselves
Namibia self drive, balloon rides, dunes, kayaking with seals, desert camping, san tribe stay, and a few days safari. Used an agent.
Peru - trekking, white water rafting, jungle, history, bike rides, culture, train rides, kayaking. Used an agent because it was post covid
The one that got cancelled was a PGL Family trip in France, which I would still love to do.
A friend took her family on a cycle trip round lake Constance and loved it.