I met my husband through Tinder about four years ago. (I am mid 40s). My policy was;
Message any that I matched with that looked interesting, with a personal message, usually something related to their pics or bio.
Discontinue messaging after the first two or three exchanges if their messages were generic, and did not refer to specific things in my message/my bio. (My now husband was the best over messages immediately because we started chatting about something in my bio and he actually quoted my favourite writer, so I was kind of hooked from the start).
I would raise the possibility of a date within roughly the first 5 or 6 messages, if they haven't. (My husband and one other guy were the only two to get in their first and suggest meeting, as I always suggested it so quickly). I know this sounds very rash to some people, but I really was not on the apps to chat, I was on there to actually physically meet men. If they ignored this suggestion or insisted on chatting for longer, again I stopped messaging then and there.
I wouldn't wait for the men to mention a date - if it's a priority for you, mention it yourself. You will know whether they want to date you from whether or not they agree to it. If they are not genuine, or not attracted to you, you will weed them out much quicker by mentioning meeting up early on.
Good luck! My best friend is going though all of this at the moment - she is gorgeous and one of the loveliest women I have ever met and she is being dicked around by so many time wasters it makes me furious. I actually think she is possibly TOO pretty and it makes some of the guys nervous because they think she can't be real - possibly this is your issue too OP?