Hello, I have just noticed that at Alsea $ALSEA* (-0.85%) or Simply better Brands $SBBC (-4.59%) I have to pay a rather high spread of 5-10%. Do you know how I can avoid such spreads by using certain purchase times or other exchanges and brokers?

I would also like to invest money in a stock that I have not found on Trade Republic, Scalable and Finanzen.net zero, that would be Next Vision stabilized $NXSN Do you know which broker I can find it with?