You can just find an attorney in your area who does employment/labor law (employee side) or you could use one who does medical. If it's a rural area, basically every attorney will be a generalist ("door lawyer")... but still consult with the best you can find. $250-400 per hour is normal depending on locale.
It will basically come down to your contract (are owed compensation or vaca days or benefits, etc... are not owed subjective pain/suffering/etc). An attorney will be a solid guide as to if the state/area is more pro-employee or pro-employer, if they see valid damage$, etc.
GL... every situation is different, but it's generally not worth pursuing for multiple reasons...
Namely, moving on mentally to a more positive place, focusing energy on new job search and beginning strong, and simply that you have nothing but time if unemployed and can rapidly do most quantifiable stuff in small claims court incrementally yourself and save a lot on attorney/court costs (last paycheck unpaid, didn't get X weeks severance pay per contract, didn't get full 401 match, didn't get other minor benefits, etc). There is also the not insignificant fact that your employer likely has much deeper pockets in terms of time and attorney fees to drag things out than you do in any prolonged negotiation or hearings. You know your situation best, but sometimes you just learn the lesson and move on... but take any small claims slam dunks which may exist in the contract which they are clearly violating (they'll generally settle any after the first one since it begins to hurt their biz credit for judgments against them).
