Good time to buy a (summer) tyre set

Hello and good day, we have now beginning of January and I need a set of new summer tires until about mid-April. (205/55/R19) What is the price trend of summer tires within one year? When is it best to buy for me as a normal Otto consumer? Do I get summer tires at the best now or can I possibly save one or other euro if I only hit in April when the demand is greatest? Thank youIf it is relevant to the question so barked: Remove tyres from the rims, tighten tyres onto rims, balance them out and dispose of the used tyres is also required. Disassembly and installation on the FZG is NOT required.