You only need an equatorial (EQ) platform for tracking. They can be bought or built.
See
https://www.teleskop-express.de/shop...r-40--N-S.html
There are many other complete units on the web as well as many plans. They vary in price quite a bit but some are more advanced and offer dual axis controls.
These platforms will give you about 45 minutes of tracking after which you reset the sector (takes seconds). You need to get one suitable for your latitude. They add about 100 to 200mm to the height of your Dob (depending on design) which can be very handy for smaller Dobs. With some you just plonk the whole scope onto the platform and with others you first need to remove the ground board from your Dob.
These mounts are perfect if you don’t want GOTO but do want tracking to keep your target from moving.