You can tame it with a room with a ton of charge pets and other sources of light,but I force tamed one cause I dun have time for that,it looks like you ARE the seeker when you ride it and it is the only rideable flyer that you can increase its speed because of the flyer ban.
Warning:DO NOT TRY TO TAME A SEEKER. singleplayer worlds have admin commands available, which allow you to spawn a tamed creature of nearly any type! So dont listen to anything that says you can tame seekers off of singleplayer worlds, but with a certain command you can indeed tame a seeker, but ONLY on singleplayer.
A force tamed seeker can be used as a flier on Aberration but due to the bug surrounding dismounting and the fact it kills the AB vibe I’d only recommend for swarm tactics, like onycs, plus they get a charge breath attack when in charge radius.