Potting Media mixes to coordinate waterings

[Jaxx10]

I have been reading alot and I'm kinda confused on balancing my environment with the needs of my orchids. I grow indoors (windowsill) until I can get an indirect sun exposure outdoors in the upcoming warmer months. Please provide suggestions you'd use in my case.

Environment: indoors only facing S-SW window & bathroom NE facing window
Humidity: 50-70 depending on season
Temp: central A/C @70-73F
Goal: To water all orchids at same time based on their needs.
Question: Ratio of media needed & type of pot (plastic or clay) pots with soldered holes to get them to be watered at the same time on weekly basis.

Oncidium:
Dendrobium:
Blc. Taeko Tamaki 'Volcano Empress'
Burrageara: Nelly Isler
Phalaenopsis: Grocery store type and Bellina
Catasetums: should I use the P.E.T method even if indoors?

Thank you guys ❤️