if you’re like me and want to separate SFW and NSFW stuff, there are still options to do that on Twitter, though not natively (on PC).
On mobile, you can click your profile icon in the sidebar to add an additional account.
On desktop, there’s a website called Tweetdeck. https://tweetdeck.twitter.com/
You can use this to monitor multiple twitter feeds and interact with posts as any twitters you have signed on.
This has made it significantly easier to manage my alt account. (It used to be third party but then twitter bought it and shut down the mobile version. They kept the desktop version at least.) It also allows for scheduled posts, as long as said posts are singular and not photosets.
One thing to remember, Twitter is also very impulsive. It doesn’t have a good way to view your archives or anything, so sometimes it can be good to repost older art. It is NOT gallery-conscious (which is why I personally hate it, even if I use it) and limits your characters to 240, and photosets to 4. If you want an archive and gallery (that’s been independent since its birth), I’d recommend Newgrounds. https://www.newgrounds.com/ (though I wish NG had photosets too.)
I’ve been on both for a while. NG doesn’t have much by way of social media features, but it’s accommodating to various types of content. I’d use it in conjunction with more traditional social media.