I usually use a mixture of tantalum and ceramic output capacitors. Depending on your DC bias voltage, the ceramic output capacitors will degrade in capacitance by a significant factor. Most people do not consider DC bias when designing output stages. When your calculations result in a particular value, depending on the application, you should consider DC bias, temperature, age, etc.
Using a larger package (1210) can reduce this effect. When you jump to 2220 you're looking at higher costs and stress sensitivity (flex and expansion). In many industries, electrolytic (non-solid) are not allowed to be used. A balance between HF bypassing and LF decoupling depends on your application. Take a look at the DC bias effect on that 10uF capacitor and compare how many ceramics you would need to get 10uF of effective capacitance.
I would throw down a tantalum further away from the DC converter (closer to the load) and ceramics to take the switching ripple currents. Tantalum capacitors can be reliable if used properly. If you don't use them in high ripple current, high temperature applications, they're great to work with. There are several organic polymer tantalums (more expensive) that eliminate the typical tantalum failure mode. These caps are the T520 series (Kemet); featuring low ESR and high current capability.
Of course if you're costs aren't a priority and you have space (what are the odds) you can throw down the tantalum and some smaller valued ceramics to take the switch transition currents.
Feel free to add extra requirements or details about your project/design. I would love to provide more insight.