Post SDCC (and yearly) bump. With possible changes in the upcoming Star Wars lines (less 3 3/4"), looks like things could be changing for many...
Star Wars
Vintage Collection - I'm in as we get them, specifically OT stuff and new figures that get sprinkled in.
Black Series - possibly the future (and present?) of Star Wars collector figures at retail. I'm selective here, and will continue to be. Right now I have three floating shelves for BS figures, and can only display so many, so I really think about each figure that comes into the house. OT focus here as well, and any face paint upgrades we get. Likely in for some Rise of Skywalker figures, and the Mandalorian.
Marvel Legends - What I've primarily been buying the last couple years, to be honest. There is just so much if it, so I don't get everything, but quite a bit of it. Hasbro has really been killing it on this line, and I've been loving the MCU stuff as well as the classic comic looks they put out.
MOTU Origins - Not out until the Fall of 2020, but I'm likely in on this. Already have a collection of Classics that I'm very happy with, but the combination of vintage style/scale, a somewhat reasonable price, and a retail presence sounds like a fun thing to get in on the ground floor with.
Otherwise, that might be about it. I honestly don't have a ton of room left to display things, so I've gotten a lot more selective with "other" stuff, particularly modern. I have been picking and choosing from the Transformers Siege line, I really like those. I still work on vintage toylines like GI Joe, TMNT, Super Powers, Secret Wars, etc. when I have the time/money.