You can get WS2811, which is the driver chip without an LED. You can hook that up to any RGB LED in any form factor. It's more expensive and requires more PCB space, but you get flexibility in LED placement.

The SK6812/APA102s come in a 2020 package now, but I haven't seen them on a strip. @wow_elec_tron on instagram has been working on his own flex pcbs for them. I think he may do a kickstarter to get some in production.