In the opening scenes of Infinity War, Thanos and the Black Order
have killed basically everyone aboard the Asgardian ship, which amounts to everyone who escaped the destruction of Asgard itself at the end of Thor: Ragnarok. After this, Thanos destroys the whole ship using the Power Stone. The end result is that Thor is picked up as the only survivor, by the Guardians of the Galaxy.
Of course, we learned during Thor: Ragnarok that not all Asgardians are necessarily on Asgard (Valkyrie was living on Sakaar, after all).
Do we have any indication that there are any other such Asgardians anywhere else in the MCU at the current time, or is Thor now officially (or at least "as far as we know") the last of the Asgardian race? I'd prefer an official confirmation if one exists anywhere.