There are some DIY solutions out there like with a bucket that you cut the bottom out of.
I have a SprayStand which I prefer to other options because it can sit on the toilet and drip dry. So that's something to consider when making/buying one.
https://smile.amazon.com/dp/B07LCWLM52/ref=cm_sw_r_cp_apa_glt_fabc_RFP7HYKHNJHY8D3TX7VC?_encoding=UTF8&psc=1 We use this. Expensive, but works great. Worth the price for us.