PBN
Fire Fighting
Wet Ditching.
RVSM
MNPS
Aviation Security
PBN can be done by Computer Based Training e.g. from Bristol Ground School (around £45) who will provide a Course Completion Certificate upon passing the CBT online quizes and test. Then an IR Proficiency Check which includes an RNAV approach / missed approach which can be done at any ATO with a suitably equiped FNPT-II simulator. Revalidated IR plus new PBN is then endorsed on your license.
Cannot comment on the other elements.
jr