Whats this guitar sound, how do you make it ?

[MasterTuner]

Is there a sample library out there that has a guitar like this ?

There's tremolo in there at least....

https://soundcloud.com/user-955379286/guitar

[pough]

Sounds to me like a clean guitar (+reverb) strummed with the tremolo arm in hand - pushing down on the arm a bit while strumming and then letting it rise back up to pitch.

I don't use samples for guitar so I can't tell you anything about sample libraries, sorry.

[vurt]

look for "surf sounds" as a label, that should give you those sounds. like pough, dont use samples so cant help with particulars.
but yup tremelo arm (which is actually vibrato) reverb and otherwise clean.

[Ah_Dziz]

Whammy bar > tremolo> spring reverb. Orange tree samples’ libraries will get that done in a jiffy.