Quite a bit depends on more factors than you have stated.
It would be best if you and the research organization spoke to an attorney, to balance out the options.
Many of us use Skype for this type of meeting.
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H-1B is probably better. Depending on your circumstances, change of status to a J visa may subject you to the two-year foreign residence of INA 212(e).
Hake & Schmitt
Attorneys at Law
P.O. Box 540 (419 Main St.), New Windsor, Maryland 21776
Required Disclaimer: This information is generalized and should not be relied upon as legal advice; and this communication does not create an attorney-client relationship.Ask a similar question