there might be a lot of opportunities , but u didnot specify in particular the area that u want to be trained on, that way sajhaites who are already working in that particular area might provide you some valuable inputs .

also, these days, its not as easy as it used to be, to get H1B approved, if you are filing it through a consultancy , so check the credibility of that company and make sure its not blacklisted by USCIS for immigration and tax frauds,  and other things to consider are whether they pay you in time or not,  what will they do if you are between the projects ? etc.

good luck