Welcome to the forum. Yes getting started with routers is confusing, they can do a multitude of things and there are a zillion accessories, not always compatible.
I didn't check that it fits your router, but this Makita 321492-3 Template Guide: Amazon.co.uk: DIY & Tools lets you use guide bushings of the Porter Cable standard, like these: POWERTEC 71051 Router Template Guide Set | 10pc Solid Brass Guides w/ Molded Carrying Case: Amazon.co.uk: DIY & Tools
That is the set I have for my DeWalt router, I like it. Buying individual bushings is expensive.
Do a Google search for: how to use router guide bushings
An example: Understanding Guide Bushings
Take a look at some of those how-tos, then ask the forum as needed.
I didn't check that it fits your router, but this Makita 321492-3 Template Guide: Amazon.co.uk: DIY & Tools lets you use guide bushings of the Porter Cable standard, like these: POWERTEC 71051 Router Template Guide Set | 10pc Solid Brass Guides w/ Molded Carrying Case: Amazon.co.uk: DIY & Tools
That is the set I have for my DeWalt router, I like it. Buying individual bushings is expensive.
Do a Google search for: how to use router guide bushings
An example: Understanding Guide Bushings
Take a look at some of those how-tos, then ask the forum as needed.