pH is the most difficult test for those with colour blindness, but it also has the easiest work-around by using a pH-meter. They need regular calibration with buffer solutions and ideally storage in special solutions, but when properly maintained, they work well. The other tests in the Taylor 2006C or TF100 test kits use titrations with clear colour transitions rather than relying on colour shades, and often still work, depending on the exact type of colour blindness.
Theoretically, you could also do the TA titration with a pH-meter instead of a colour based indicator - the TA colour reagents are nothing else than pH-indicators that change colour at a pH of about 4.5. A bit fiddly and time consuming, and it requires a pH-meter that allows at least a 2-point calibration (at pH=7 and pH=4), but possible.
But first, I'd suggest to have a look at the videos from Marty's link above showing the Taylor tests (the TF100 also uses Taylor reagents) and check out if the colour transitions work for you. There are also videos on the Taylor webpage.
Then you could try to tailor the tests a little where required. If you for example can't see the green to pink colour transition of the Taylor TA test, you could replace the Taylor indicator with a Bromophenol Blue indicator, that does a colour transition from blue to yellow (once it's yellow, you're actually too far). Not sure if there are alternatives to the pink-to-blue transition in the calcium test. And for chlorine, there isn't really an alternative to the pink-to-clear of the FAS-DPD. If that is not working out for you, then you could try a photometric based test (accepting less accuracy and being limited to chlorine levels below 5 to 8 ppm) for your regular testing, and ask a family member or friend to help with a proper FAS-DPD test from time to time or during a SLAM.