IF you have a friend who has watched and enjoyed Thor Ragnarok and wants an accessible and fun set of stories about Lord of Thunder, you might not choose the current Marvel series. An unworthy, one-armed Odinson and a years long war of the realms does not make a series new-reader friendly. You could try the original Journey into Mystery stories, but they are a bit exhausting to read. The Simonson run will be prominently displayed in all good bookstores, but that's also a long story to commit to.
And if you don't have a friend who enjoyed Thor Ragnarok, you should get one.
The only answer must be Thor The Mighty Avenger
by Roger Langridge and Chris Samnee
. It was released to little fanfare in 2013, but it's bloody brilliant. It has more of the humour of the original Thor film, but comes with a huge amount of heart.
It covers Thor's banishment from to Midgard, where is alone and a bit confused. Each issue is a standalone adventure with different guest stars. Towards the end of its run it starts to build a multi-issue story arc, but that is where it was cancelled and not completed.( What has Thor the Mighty Avenger got to offer you?
)Thor The Mighty Avenger - The story of finding your place in a lonely and strange world and the friends you make along the way.