Boosters!

Hi guys, I have recently found that I have a bad brake booster.
1972 dart custom 225 sl6 front disks rear drums.

I have scoured the internet and this forum for direct replacement source and other boosters that are compatible and have found it difficult to get a clear answer. In the interest of getting a good list together in one spot can I get people to share what they know regarding what boosters will work for what darts and all known to work compatible boosters.
Yes my motives are selfish, but I know there are a lot of people that would benefit from this as well.
Also information on CHEAP alternatives I KNOW will be appreciated here.

Thanks in advance to anyone choosing to take the time to share.