The where to play really depends on where you live as to the strategy/tips parts:
Take this with a grain of salt but it's my experience. I haven't played in a long time, but I did spend a LOOOT of time playing back in the day to cash out a few bonus (which I did but it was really hard and took way too long) and after playing for a long time I managed to see some kind of "patterns". For the most part it would be a break even/slightly loose/slightly win, but every so often there would be this sick coolers/heaters much like when the card count is shifting to an extreme in real life. Be careful when losing too many in a row, keep the bet to the minimum until you win, and if you reach a hot train then by all means ride it and keep playing an amount you are comfortable with but that is bigger than the usual amount (e.g if your cooler sizing is 1x, normal sizing 2x, then something like 3.5-5x). By riding "the hot train" I managed to make quite a bit of money but you must realise it is based on luck and there is no real skill/magic way to beat the casino. Play basic strategy to minimise the casino edge. Also avoid tilt. Pretty much anyone will get lucky and be able to make some money at some point during blackjack, know went to stop and don't chase losses or increase bet sizing due to this, that is the road to going busto (or hitting a huge bet if you are lucky but most of the times doesn't end up well).