That's easy! Use what's available locally.
Get Meguiar's compounds and polishes, then get Meguiar's M21 2.0 for a pure sealant. You can also use Ultimate Liquid Wax (which is a sealant). And for that super special 'extra' option you can ALSO use M26 yellow wax, which is a hybrid sealant. You can top ULW or M21 with M26 btw for an INCREDIBLE SHINE, DEPTH, COLOR RENDITION, AND POP!!!!:dblthumb2: Meguiar's M26 has both polymer sealant properties, but it also has carnauba in it, which means it's not as durable as a dedicated 'sealant'. But... it's been known for must be going on 20 years as a simply beautiful final LSP, and it plays well with a lot of other LSP's when you're using it as a 'topper'.