I'm looking for any and all creatures–specifically those that have stat blocks in 5e (so I'm excluding things from previous editions that don't have stat blocks in 5e, largely just to narrow the scope of this question)–that are related in some way to the Far Realm. I'm after only creatures that have official stat blocks in 5e so that this doesn't just become asking Google for random unbalanced homebrewed Far Realm creatures, of which I'm sure there's plenty; I prefer using official content where possible.
(What I'm actually after are all of the Lovecraftian creatures, but "what do you think has Lovecraftian influences?" is opinion-based, whereas concrete links in the lore to the Far Realm is objective, hence I'm asking that instead. Furthermore, in the adventure I'm planning, the creatures will have a link to the Far Realm anyway, so the Far Realm link is still relevant to what I'm after.)
Those I know of already (with what evidence I could find from 5e sources of lore) are:
Mind Flayers (and other associated creatures, such as Elder Brains, Mindwitnesses, etc):
Aberrations such as mind flayers and beholders are either from this plane or shaped by its strange influence.
– p. 68, The Far Realm, Dungeon Master's Guide
Beholders (and other variations, such as Spectators, Gazers, Death's Kiss, etc):
Aberrations such as mind flayers and beholders are either from this plane or shaped by its strange influence.
– p. 68, The Far Realm, Dungeon Master's Guide
Aboleth (I know of no other variations, so this is just "the Aboleth"):
"Could it be that aboleths are older than the gods ... that before the divine ones came to be, such horrors shaped the multiverse? Now there's a chilling thought."
-- Vaqir Zekh'r, githzerai philosopher and author of THE FAR REALM: REAL YET UNREAL– p. 14, Aboleth, Monster Manual
Star Spawn (all 5 variations given in Mordenkainen's Tome of Foes):
Heralds of Doom. The creatures known as the star spawn are the heralds, servants, foot soldiers, and lieutenants of the Elder Evils [...]
– p. 234, Star Spawn, Mordenkainen's Tome of Foes
Some Elder Evils are alleged to be creatures of the Far Realm [...]
– p. 237, Elder Evils sidebar, Mordenkainen's Tome of Foes
Are there any other creatures that I've missed? Note, that last quote shows that not all "Elder Evils" are related to the Far Realm, so a link to an Elder Evil isn't by itself enough (although it might still deserve an honourary mention); I'm looking for links to the Far Realm specifically, even if the link is really weak or indirect, such as my Aboleth quote above.
If the setting matters, let's assume Forgotten Realms, although if the Greyhawk setting or whatever has anything relevant, I'll accept that too (but it might be the case that the Far Realm is specifically only a thing in the Forgotten Realms setting anyway, in which case this paragraph is redundant).
The link to the Far Realm doesn't have to be from 5e (for example, if it was established that, for some reason, Gnolls were somehow related to the Far Realm in, say, 3e, then they are valid for this question because there are stat blocks for Gnolls in 5e, even though there is no link between Gnolls and the Far Realm in 5e; however, if 3e said that Bladelings were related to the Far Realm, that would not be a valid answer, since AFAIK there are no official stats for Bladelings in 5e).
Incidentally, the links to the Far Realm I found are quite weak, but this is all 5e has to offer, it seems (at least, from the DMG, MM, VGtM, and MToF), so if anyone wants to include any stronger links to the Far Realm from previous editions' lore for the creatures I've already included, that would be appreciated, but not if that's all the answer contains, since then it wouldn't actually answer the question asked, which is "what other creatures are related to the Far Realm?" (unless your answer was also saying "Nope, you've found them all", in which case it would still be a valid answer).