dotnet, on Thinkorswim the $ticker for breadth on SPX is $adspd and $adnddc for NDX breadth. I also use $TICK, TICK/r and $TRIN (not as much), and intra-day put/call ratios (not as much the last).
I primarily use hourly for swing and five minute for day trading. I will use tick and ATR charts if I need clarification. I have found though it's not really useful to do that. I would miss a trade on a time based chart that was obvious on a tick or ATR based one, and vice verse and ended up getting paralyzed by analysis. Better to stick to the discipline of one style of charting for me.
I use classic TA indicators with them, anything really works. I just use price for entry/exit. Never for strategy anymore.