There's no single best tool — there's a best tool for how you actually sell. Start with one question: what's pushing you off Bookeo?
Then you need a platform that prices on features and value rather than on a monthly booking ceiling. Samba's plans don't cap bookings; the cost is a flat 2% per booking with the first $10,000 of bookings free. Rezdy is the other transparent scale-up, with published plans from $49/month — just remember it adds +3% per online booking, where Bookeo charged 0% commission, so this is a distribution-versus-fee decision.
Then deposits, installments and itinerary structure matter more than anything. Samba is purpose-built for this: native deposits and installment plans on every plan, a $0/mo Free tier, and a flat 2% per booking with the first $10,000 free. WeTravel is the closest alternative, pairing a native itinerary builder with auto-billing — just confirm its booking fee on a demo, since it isn't published.
Then reach outweighs the headline fee. Bókun is built for it: a marketplace of 2,600+ OTAs and resellers, plus a 0% Bókun fee on Viator bookings on paid plans. Rezdy plays the same game with a 12,000-agent marketplace and a transparent +3% online-booking fee. Bookeo connects to Viator, Expedia and TripAdvisor, so if those few channels are enough, you may not need to move at all.
It depends on your average ticket. Bookeo's 0% commission is unbeatable on price per booking — nothing here charges less. The question is whether the booking caps, the deposits-only payments, and the day-activity center of gravity cost you more, in lost flexibility, than a small per-booking fee would. For a $3,000 multi-day trip, a flat 2% is $60; for a high-volume operator hitting caps, the trade can still favor moving.