TS, if you haven't go to BKK, here are my suggestions:
1. Not sure how much you want to spend but you can Google BJ Bars. Got plenty such as Woodbar Bangkok, 7th Heaven and Duangporn. As the name suggest, you just go there for BJ but they also offer full course. Most BJs are 800THB unless stated on their site if any.
2. If you want FLs you can try Thermae bar. I forgot the prices but bros in other threads said the standard price is 2500 to 3000THB now. BKK is good for begginers but if you're feeling adventuours you can try taking a 2hr bus to Pataya. Head to the beach walk around 2100 and plenty of FLs. Iirc pre-covid my lady asked for 1200THB. But take note to look out for mata.
3. You can also Google for soapy/nuru massage if you want more fun
4. Besides chionging, I also suggest you makan alot cos there got many things to eat. Can watch Mark Wiens' videos as he has lots of suggestions. I also like to visit their temples as some of them are damn nice.
Edit: 5. ALso get their ezlink card for BTS. They have 2 trains but just get for BTS can liao. I also suggest to try their massage (legit 0ne) cos there is roughly $20 which is damn cheap
