What is the process for going 37F in the reserves?

There is no pipeline and there is no need to really see a recruiter for reserves. Find a unit. Contact the unit. Submit a transfer. Just be aware that there are some qualifications you must meet such as ST score on ASVAB. Pass the Color blindness test and 70% or higher on APFT is preferred. You will be required to attend MOS reclass within 6 months. It's a 29 day course and you have to pass minimum body fat standards upon check in or you go home that day. The reclass is a condensed course. It is high stress, long hours and is made up of three phases. Online course, the resident course and an 7 day FTX.
If you have further questions contact me. I am an instructor for the MOS-T course. I'd be happy to help you out!

FYI, There is no more MISO for standard operations. It now is simply PSYOP Soldiers performing PSYOP operations.

Now. To answer your question, it is one class broken up into two resident phases and one DL phase. The Disrancr Learning is phase 1. Then you go to the resident course which is phas 2 (two weeks) and phase 3 (just under 2 weeks) for a total of 29 days. Phase two is all classroom I structuring and practical exercises and phase three is in the field. Two exams, an STX CULMEX and a 4 day FTX. Tcourse is about to field a new Program of Instruction and a few things will likely change but as of this FY and next it should be like this.

Once you speak to a recruiter and sign the papers to transfer to a reserve PSYOP unit you will begin to drill and train with the unit until you have a slot to reclass (29 days long) at which point you will gain be MOS qualified. there is no language requirement or overall selection process for the reserves at this time but be aware that MISO can be more demanding on your time than some other reserve units.