Lung, If you want to embark on this hobby, something that was really valuable to me, in terms of eyepiece, was to learn how to differentiate a standard eyepiece from a good one. And no eyepiece gave me more understanding about contrast, sharpness, than orthoscopic eyepieces. They are in the low budget spectrum, not because of the quality but because of the limited field of view. They are great for long focal length telescopes delivering a sharp planetary views. That is my advice about what type you could go first. All tips given before are very good.
Good luck.