for nostur you're going to want an a wallet that allows you to use NWC(nostr wallet connect). I'm currently using albyhub but that requires running software yourself. If you want to get up and running asap, I'd recommend coinOS or cashu.me. Both are custodial wallets but for this use case the trade offs are okay.

coinOS:

-Click the cog in the picture below

-Copy the connection string and paste it into nostur (be sure to not share this string anywhere)

-if you click Receive you'll be able to see your lightning address which you can add to your nostr profile to allow people to zap you

if you'd rather do cashu.me lmk and I can help you