LORs
Along with asking the folks Flywrite mentioned if they will serve as references, see if you can get any of them to write a letter of reference for you. This is especially important for your employers, because if you can submit a good LOR you might prevent a prospective employer from calling the former employer for a reference check. Even if you left an employer on good terms, a call taken by the wrong person can spell disaster in many ways. Ideally, you want to get a letter of reference from at least all your aviation employers to serve as documention of your employment record.
A reference letter need not launch into a flowery, glowing essay on how wonderful you are as a pilot and person. In fact, that's the wrong approach because it comes off either as BS or raises questions about you. All you need is beginning and ending dates of employment or instruction and what you did for the employer or the course you studied. The writer can include a brief statement about the good qualities you exhibited. It is nice if an employer will state that you would be eligible for rehire.
I had a number of students ask me to write letters of reference, which I was always more than pleased to do. I remembered how important it was to me that a boss or supervisor would write letters for me. Some say they will do it but never do. They forget that at one time they were trying to get a job.
Good luck with your plans.