I really like the solution of offering 'public transport bicycles' at stations. I've used it in a number of cities in Holland and seen it in action in Barcelona

I really like the solution of offering 'public transport bicycles' at stations. I've used it in a number of cities in Holland and seen it in action in Barcelona and (IIRC) Paris. Barcelona in particular seems to have really gone all-in on this solution. The city, or at least the center, is covered in spots where you can pick up or leave such a bike using a card. In Holland it's understandably not as widely rolled out because most people have at least one bike in the city where they live, and often a second bike for the city where they work.