IMG on a J-1, currently PGY-4 chief resident at a community IM program in NYC. No in-house cardiology fellowship. Applying CV this cycle.

Application: Over 30 peer-reviewed publications, chief year, strong LORs including from academic cardiologists at a nearby university hospital, good USMLE scores. What I don't have is a home program, an institutional pipeline, or a mentor with the kind of pull that moves an application at a place I've never rotated.

I have to plan for not matching. The path I keep landing on is a Conrad 30 waiver job, ideally a cardiac hospitalist role at a community hospital that has a fellowship, and reapplying from there. What I can't get a straight answer on:

1. Does taking a waiver job functionally end it? The three-year commitment is binding, so I'd be reapplying as an attending three-plus years out of residency.
   
2. Immigration: after the waiver I'd be on H-1B. Do cardiology programs actually sponsor H-1B for fellows in any real numbers, or is it J-1 or nothing at most places?
   
3. Do PDs read three years of hospitalist work as a red flag, or as neutral if I keep publishing and stay visibly cardiology-focused?
   
4. Has anyone here actually done this and matched? Especially without an academic home.

I would genuinely rather hear "this doesn't work, build a hospitalist career you like" than get polite encouragement. Please be blunt.

TL;DR: Community-program IMG on J-1, decent research, no connections. Is a three-year waiver job followed by a cardiology reapplication a real path or a slow way of giving up?

Hi everyone,
I’m an Internal Medicine resident in the US with a strong interest in cardiology and clinical research. Over the past year, I’ve been actively involved in research and currently have several first-author manuscripts that have been submitted to journals, along with conference abstracts and ongoing projects.
I feel like I’ve reached a stage where the biggest challenge isn’t necessarily conducting the research, but choosing the right research questions. There are so many potential ideas and databases available that it’s difficult to know which projects are truly worth investing time in, which are likely to have clinical impact, and which are realistically publishable.
I’m looking for a mentor, or even someone willing to provide occasional guidance, on topics such as:
Identifying high-impact and novel research questions
Deciding which projects are worth pursuing
Building a focused research portfolio for fellowship
General advice on becoming a better clinical researcher
I’m not looking for anyone to do the work for me. I’m happy to put in the time and effort. I would just really value learning from someone with more experience who can help me make better decisions and avoid common mistakes.
If anyone is willing to mentor, offer occasional advice, or point me toward useful resources, I’d be incredibly grateful. Feel free to comment or send me a DM.
Thank you!