How to use your PC to add effects to the guitar (like pedals)

The software Gnuitar is good for this.

Gnuitar: sourceforge.net/projects/gnuitar/

It works on all platforms and is opensource.

Device

Planning to get an iRig HD 2 which connects to iPhone, iPad and PC.

On iPhone you can use it with many apps including Garage band and ToneBridge.

Trysmudford guitar pedal board -- see https://pedalboard.netlify.com/ or video or source

Try Sound SLice

Sound Slice is an interesting music practice site:

https://www.soundslice.com/

Sources