Most buttons can't be used with a breadboard because the pins are too short. For example these nice button I bought for $0.12 each. But you need only some pin headers to fix this:

First plug in the pin headers in a breadboard:

Then clip the button on the pin headers. You might need to bend the pins of the button a bit so that it is a tight fit and the pins of the button are at the outer side of the pin headers on each side, so that it doesn't fall off when you solder it:

Then solder it, done:

You can buy a professional PCB for it now in my Tindie shop as well:

https://www.tindie.com/products/frankbuss/breadboard-push-button/