I'm INTJ, but I also need to preface this by saying that MBTI is entirely baseless and invalid as a personality model. Five-factor personality models have been developed and dominating with regards to scientific validity and rigor for close to 60 years now. MBTI is a soft form of self-assessing confirmation bias, and while still useful if you're very self-aware, the self-aware have little use for it to begin with. With that said...

INTJ-esque men need to be able to develop acquaintances very broadly. It doesn't mean you have to be social or incredibly friendly to everyone, you have to walk that thin line of being yourself at face value and handling the small-talk/'basic'-ness that make up the majority of social interactions out there. You will have a lot of acquaintances, but if you have RP fundamentals, your few friendships will be more rewarding than what most people can achieve with their one closest friend. Being acquainted with many people and basically not turning them off from you before you naturally can provide more context about yourself, will be all the invitation you have to give out. You will attract people to the person you are, given that you are interesting and willing to be interested.

I want to touch on your loneliness comment. You're probably not lonely if you're the prototypical pure INTJ (which doesn't exist obviously). You want certain types of people and are frustrated because you can't come across any. First, make sure you aren't lacking yourself and apply RP principles. If you're uninteresting, that's your fault. If you're socially awkward, that's your fault. If you're dumb as shit but think like an INTJ and you're unproductive about it, you'll never find anyone that appreciates you superficially or in the deep meaningful way you want. INTJs can find people they vibe well with in environments of productivity (think higher education, professional careers, hobbies, etc.)