Well first of all thank you very much !!
And I mean I’m not too sure honestly, like you could look into different models, see what you prefer, measure your dick well to make sure you get a good size, moisturize when you put it on… apart from that it depends on what/ why you’re into it, just talk about it with your partner about what you both like about it, what elements / dynamics you find hot but most importantly focus on having fun with it !