Retrogo,
I have been doing some developing for years off and on, and recently started again. there are many options- Brands, Steel vs plastic, various developers, techniques, film etc., etc.
I find the AP Paterson and the Yankee plastic ones are the easiest, though some find steel the best ones you have become proficient. The plastic ones can be adjusted- 35mm to 120 etc.
Hope this helps.
Subhash